--- title: Scientists reported that bearded dragons switch between two sleep st… — Do animals dream? Twitching dogs, replaying rats… · tree and pragmatics description: Scientists reported that bearded dragons switch between two sleep stages again and again through the night, which may mean these stages are very old, though some scientists think reptile sleep works differently. Who acts: Scientists, bearded dragons, night, stages. A sentence of the lesson «Do anima --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/biology/391-do-animals-dream-twitching-dogs-replaying-rats-and-colour-changing-octopuses/16/) [home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [school](https://md.mova.elamur.ai/free/en/corpora/school/) / [Biology](https://md.mova.elamur.ai/free/en/corpora/school/biology/) / [Do animals dream? Twitching dogs, repl…](https://md.mova.elamur.ai/free/en/corpora/school/biology/391-do-animals-dream-twitching-dogs-replaying-rats-and-colour-changing-octopuses/) / 16 # Do animals dream? Twitching dogs, replaying rats and colour-changing octopuses, sentence 16 Scientists reported that bearded dragons switch between two sleep stages again and again through the night, which may mean these stages are very old, though some scientists think reptile sleep works differently. **Who acts:** Scientists, bearded dragons, night, stages, reptile sleep · **What happens:** report, switch, mean, be, think, work · **Speech:** someone speaks here This is a sentence of the lesson «Do animals dream? Twitching dogs, replaying rats and colour-changing octopuses» of the biology course of Mova's primary school. The page gives its syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause: who acts (Scientists, bearded dragons, night, stages), what happens, when and where, as Mova's frames read it from the tree. ## The tree {#tree} ```conllu # sent_id = school:biology:391-do-animals-dream-twitching-dogs-replaying-rats-and-colour-changing-octopuses.lesson:16 # text = Scientists reported that bearded dragons switch between two sleep stages again and again through the night, which may mean these stages are very old, though some scientists think reptile sleep works differently. # source = school lesson (ours) # course = biology # lesson = 391-do-animals-dream-twitching-dogs-replaying-rats-and-colour-changing-octopuses.lesson # annotation = Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R5-strong ×1 1 Scientists scientist NOUN NNS Number=Plur 2 nsubj _ _ 2 reported report VERB VBD Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin 0 root _ _ 3 that that SCONJ IN _ 6 mark _ _ 4 bearded bearded ADJ JJ Degree=Pos 5 amod _ _ 5 dragons dragon NOUN NNS Number=Plur 6 nsubj _ _ 6 switch switch VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 2 ccomp _ _ 7 between between ADP IN _ 10 case _ _ 8 two two NUM CD NumForm=Word|NumType=Card 10 nummod _ _ 9 sleep sleep NOUN NN Number=Sing 10 compound _ _ 10 stages stage NOUN NNS Number=Plur 6 obl _ _ 11 again again ADV RB _ 6 advmod _ _ 12 and and CCONJ CC _ 16 cc _ _ 13 again again ADV RB _ 11 conj _ Agree=R5-strong|Haiku=16:advmod 14 through through ADP IN _ 16 case _ _ 15 the the DET DT Definite=Def|PronType=Art 16 det _ _ 16 night night NOUN NN Number=Sing 6 obl _ _ 17 , , PUNCT , _ 20 punct _ _ 18 which which PRON WDT PronType=Rel 20 nsubj _ _ 19 may may AUX MD VerbForm=Fin 20 aux _ _ 20 mean mean VERB VB VerbForm=Inf 16 acl:relcl _ _ 21 these this DET DT Number=Plur|PronType=Dem 22 det _ _ 22 stages stage NOUN NNS Number=Plur 25 nsubj _ _ 23 are be AUX VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 25 cop _ _ 24 very very ADV RB _ 25 advmod _ _ 25 old old ADJ JJ Degree=Pos 20 ccomp _ _ 26 , , PUNCT , _ 30 punct _ _ 27 though though SCONJ IN _ 30 mark _ _ 28 some some DET DT PronType=Ind 29 det _ _ 29 scientists scientist NOUN NNS Number=Plur 30 nsubj _ _ 30 think think VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 25 advcl _ _ 31 reptile reptile NOUN NN Number=Sing 32 compound _ _ 32 sleep sleep NOUN NN Number=Sing 33 nsubj _ _ 33 works work VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 30 ccomp _ _ 34 differently differently ADV RB _ 33 advmod _ _ 35 . . PUNCT . _ 2 punct _ _ ``` ## Pragmatics {#pragmatics} - form: statement - act: assert - voice: narrator - polarity: none - teacher: kept the draft | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **report** | past | Scientists | | | | | | vn characterize-29.2-1-2 «NP V NP»: agent=Agent clause=Theme | | 2 | **switch** | present | bearded dragons | | | | again; night | between two sleep stages | vn convert-26.6.2-1-1 «NP V»: agent=Patient | | 3 | **mean** | may | the night | | | | | | vn intend-61.2-1 «NP V S»: agent=Agent | | 4 | **is** | present | this stages | | | | | old *property* | tree rules | | 5 | **think** *speech: other* | present | some scientists | | | | | | vn consider-29.9-2 «NP V how S»: agent=Agent clause=Theme | | 6 | **work** | present | reptile sleep | | | | | differently *property* | vn employment-95.3 «NP V»: agent=Agent | 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. **Licence: [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/)**, as the whole of Mova corpus 0.4, of which this treebank (the agreed school, `mova-school-agreed-en.conllu`) is part. The lessons were written for Mova's primary school. Sentence `school:biology:391-do-animals-dream-twitching-dogs-replaying-rats-and-colour-changing-octopuses.lesson:16`. **The tree:** Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R5-strong ×1. **The frames** are read from the tree by Mova's frames reader (`prag`) when this page is built, the lesson read in order, so a pronoun may be resolved from an earlier sentence. See the [release 0.4](https://md.mova.elamur.ai/free/en/releases/0.4/). - ← previous: [Do animals dream? Twitching dogs, repl…, 15](https://md.mova.elamur.ai/free/en/corpora/school/biology/391-do-animals-dream-twitching-dogs-replaying-rats-and-colour-changing-octopuses/15/) - next →: [Do animals dream? Twitching dogs, repl…, 17](https://md.mova.elamur.ai/free/en/corpora/school/biology/391-do-animals-dream-twitching-dogs-replaying-rats-and-colour-changing-octopuses/17/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/biology/391-do-animals-dream-twitching-dogs-replaying-rats-and-colour-changing-octopuses/)