Who acts: it, We, owls, village lights, hikers, Bats · What happens: become, reach, begin, hoot, come on, be · To what, where: cabin, nightfall, shelter
«nightfall» in the school dictionary: its meaning for a pupil and its 7 examples, every sentence parsed by Mova itself — its syntax tree, a dependency tree in the style of Universal Dependencies, and its pragmatics clause by clause. The word in the dictionary, with its sense in the lessons: nightfall in the school dictionary.
Meaning 1
The time in the evening when it becomes dark; dusk.
vn become-109.1-1-1 «NP V PP.attribute»: agent=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.
Example 1
We must reach the cabin before nightfall.
The words, one row each (CoNLL-U)
#
word
lemma
UPOS
features
head
relation
1
We
we
PRON
Case=Nom Number=Plur Person=1 PronType=Prs
3 reach
nsubj
2
must
must
AUX
VerbForm=Fin
3 reach
aux
3
reach
reach
VERB
VerbForm=Inf
root
root
4
the
the
DET
Definite=Def PronType=Art
5 cabin
det
5
cabin
cabin
NOUN
Number=Sing
3 reach
obj
6
before
before
ADP
_
7 nightfall
case
7
nightfall
nightfall
NOUN
Number=Sing
3 reach
obl
8
.
.
PUNCT
_
3 reach
punct
#
verb
tense, mood
who
what, whom
to whom
where
when
other
roles by
1
reach
must
We
the cabin
before nightfall
vn body_motion-49.2-1-1 «NP V NP ADV»: agent=Agent cabin=Theme
vn fit-54.3 «NP V NP PP.location»: agent=Agent shelter=Value in wood=Location
Text: the school dictionary of Mova's schools (world/data/dictionary-schools/), written for Mova. 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 meaning and example read on its own. Elamur Cosmic License.