Exam question 4 · Day and night, and the Moon's faces
Select the response consistent with the established facts concerning the observation of a solar eclipse.
Mova's choice: option 1 · The right answer: option 1 · right ✓ · Who acts: you, established facts · What happens: select, establish, concern, observe · To what, where: response, observation, solar eclipse
This is exam question 4 of lesson 39 «Day and night, and the Moon's faces» of the physics course of Mova's primary school, asked in stiff, formal language. The page gives the question's syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause, then the 4 options as the student saw them, each with its tree and pragmatics. Every text is parsed by Mova itself. How the student answered it, with the score of every option and why: the test at school.
The question
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | Select | select | VERB | Mood=Imp VerbForm=Fin | root | root |
| 2 | the | the | DET | Definite=Def PronType=Art | 3 response | det |
| 3 | response | response | NOUN | Number=Sing | 1 Select | obj |
| 4 | consistent | consistent | ADJ | Degree=Pos | 1 Select | xcomp |
| 5 | with | with | ADP | _ | 8 facts | case |
| 6 | the | the | DET | Definite=Def PronType=Art | 8 facts | det |
| 7 | established | establish | VERB | Tense=Past VerbForm=Part Voice=Pass | 8 facts | amod |
| 8 | facts | fact | NOUN | Number=Plur | 4 consistent | obl |
| 9 | concerning | concern | VERB | VerbForm=Ger | 8 facts | acl |
| 10 | the | the | DET | Definite=Def PronType=Art | 11 observation | det |
| 11 | observation | observation | NOUN | Number=Sing | 9 concerning | obj |
| 12 | of | of | ADP | _ | 15 eclipse | case |
| 13 | a | a | DET | Definite=Ind PronType=Art | 15 eclipse | det |
| 14 | solar | solar | ADJ | Degree=Pos | 15 eclipse | amod |
| 15 | eclipse | eclipse | NOUN | Number=Sing | 11 observation | nmod |
| 16 | . | . | PUNCT | _ | 1 Select | punct |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | select | imperative | you not said here | the response | consistent property | vn obtain-13.5.2 «NP V NP»: agent=Agent response=Theme | |||
| 2 | establish | participle | vn indicate-78-1-1 «NP V NP to be NP»: agent=Pivot | ||||||
| 3 | concern | gerund | the established facts not said here | the observation of a solar eclipse | vn amuse-31.1 «NP V NP»: agent=Stimulus observation=Experiencer | ||||
| 4 | observe | a solar eclipse | nom observation «act transitive»: of=patient |
One row per clause the reader finds. «not said here»: a role filled from the clause above. «roles by»: a VerbNet class and frame when one fits the verb, else the reader's rules on the tree.
The options
Option 1 · ← Mova's choice · ✓ the right answer
It must never be viewed save through special eclipse glasses
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | It | it | PRON | Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs | 5 viewed | nsubj:pass |
| 2 | must | must | AUX | VerbForm=Fin | 5 viewed | aux |
| 3 | never | never | ADV | PronType=Neg | 5 viewed | advmod |
| 4 | be | be | AUX | VerbForm=Inf | 5 viewed | aux:pass |
| 5 | viewed | view | VERB | Tense=Past VerbForm=Part Voice=Pass | 6 save | amod |
| 6 | save | save | VERB | Mood=Ind Number=Sing Person=1 Tense=Pres VerbForm=Fin | root | root |
| 7 | through | through | ADP | _ | 10 glasses | case |
| 8 | special | special | ADJ | Degree=Pos | 10 glasses | amod |
| 9 | eclipse | eclipse | NOUN | Number=Sing | 10 glasses | compound |
| 10 | glasses | glass | NOUN | Number=Plur | 6 save | obl |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | not view | must · passive | It | vn sight-30.2 «NP V NP»: subject=Stimulus | |||||
| 2 | save | present | special eclipse glasses | vn get-13.5.1-1 «NP V NP»: agent=Agent |
Option 2
It may be viewed safely through binoculars
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | It | it | PRON | Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs | 4 viewed | nsubj:pass |
| 2 | may | may | AUX | VerbForm=Fin | 4 viewed | aux |
| 3 | be | be | AUX | VerbForm=Inf | 4 viewed | aux:pass |
| 4 | viewed | view | VERB | Tense=Past VerbForm=Part Voice=Pass | root | root |
| 5 | safely | safely | ADV | _ | 4 viewed | advmod |
| 6 | through | through | ADP | _ | 7 binoculars | case |
| 7 | binoculars | binocular | NOUN | Number=Plur | 4 viewed | obl |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | view | may · passive | It | binoculars | safely property | vn sight-30.2 «NP V NP»: subject=Stimulus |
Option 3
It may be viewed directly provided the duration of viewing is brief
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | It | it | PRON | Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs | 4 viewed | nsubj:pass |
| 2 | may | may | AUX | VerbForm=Fin | 4 viewed | aux |
| 3 | be | be | AUX | VerbForm=Inf | 4 viewed | aux:pass |
| 4 | viewed | view | VERB | Tense=Past VerbForm=Part Voice=Pass | 12 brief | amod |
| 5 | directly | directly | ADV | _ | 6 provided | advmod |
| 6 | provided | provide | VERB | Mood=Ind Tense=Past VerbForm=Fin | 4 viewed | ccomp |
| 7 | the | the | DET | Definite=Def PronType=Art | 8 duration | det |
| 8 | duration | duration | NOUN | Number=Sing | 6 provided | obj |
| 9 | of | of | ADP | _ | 10 viewing | case |
| 10 | viewing | viewing | NOUN | Number=Sing | 8 duration | nmod |
| 11 | is | be | AUX | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | 12 brief | cop |
| 12 | brief | brief | ADJ | Degree=Pos | root | root |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | view | may · passive | It | vn characterize-29.2-1 «NP V NP to be ADJ»: subject=Theme clause=Attribute | |||||
| 2 | provide | past | the duration of viewing | directly property | vn ensure-99 «NP V NP»: agent=Precondition duration=Theme | ||||
| 3 | is | present | brief property | tree rules |
Option 4
It may be viewed safely through ordinary sunglasses
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | It | it | PRON | Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs | 4 viewed | nsubj:pass |
| 2 | may | may | AUX | VerbForm=Fin | 4 viewed | aux |
| 3 | be | be | AUX | VerbForm=Inf | 4 viewed | aux:pass |
| 4 | viewed | view | VERB | Tense=Past VerbForm=Part Voice=Pass | root | root |
| 5 | safely | safely | ADV | _ | 4 viewed | advmod |
| 6 | through | through | ADP | _ | 8 sunglasses | case |
| 7 | ordinary | ordinary | ADJ | Degree=Pos | 8 sunglasses | amod |
| 8 | sunglasses | sunglasses | NOUN | Number=Plur | 4 viewed | obl |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | view | may · passive | It | ordinary sunglasses | safely property | vn sight-30.2 «NP V NP»: subject=Stimulus |
Text: the tests of Mova's primary school, written for Mova (world/data/school/), as the course runner gave them to the student. Trees: Mova's own parse — the en model on the CPU, when the site is built — not checked by a teacher; they may be wrong. Frames: Mova's frames reader (prag), each text read on its own. Elamur Cosmic License.
This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/questions/physics/39-day-and-night-and-the-moons-faces/e4/