--- title: Wild hermit crabs sometimes queue by size and swap shells one after… — Unusual pets: stick insects, giant snails, ant f… · tree and pragmatics description: Wild hermit crabs sometimes queue by size and swap shells one after another, each moving into the shell left by the next biggest; scientists call this a vacancy chain. Who acts: each, scientists. A sentence of the lesson «Unusual pets: stick insects, giant snails, ant farms and hermit crabs» of the --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/biology/330-unusual-pets-stick-insects-giant-snails-ant-farms-and-hermit-crabs/17/) [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/) / [Unusual pets: stick insects, giant sna…](https://md.mova.elamur.ai/free/en/corpora/school/biology/330-unusual-pets-stick-insects-giant-snails-ant-farms-and-hermit-crabs/) / 17 # Unusual pets: stick insects, giant snails, ant farms and hermit crabs, sentence 17 Wild hermit crabs sometimes queue by size and swap shells one after another, each moving into the shell left by the next biggest; scientists call this a vacancy chain. **Who acts:** each, scientists · **What happens:** queue, swap, move, leave, call · **To what, where:** shells, shell, this · **Speech:** someone speaks here This is a sentence of the lesson «Unusual pets: stick insects, giant snails, ant farms and hermit crabs» 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 (each, scientists), what happens, when and where, as Mova's frames read it from the tree. ## The tree {#tree} ```conllu # sent_id = school:biology:330-unusual-pets-stick-insects-giant-snails-ant-farms-and-hermit-crabs.lesson:17 # text = Wild hermit crabs sometimes queue by size and swap shells one after another, each moving into the shell left by the next biggest; scientists call this a vacancy chain. # source = school lesson (ours) # course = biology # lesson = 330-unusual-pets-stick-insects-giant-snails-ant-farms-and-hermit-crabs.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 ×2, R7-rel-agree ×1, R8-pos-agree ×1 1 Wild wild ADJ JJ Degree=Pos 3 amod _ _ 2 hermit hermit NOUN NN Number=Sing 3 compound _ _ 3 crabs crab NOUN NNS Number=Plur 0 root _ _ 4 sometimes sometimes ADV RB PronType=Ind 5 advmod _ _ 5 queue queue VERB VBP Mood=Ind|Tense=Pres|VerbForm=Fin 3 conj _ _ 6 by by ADP IN _ 7 case _ _ 7 size size NOUN NN Number=Sing 5 obl _ _ 8 and and CCONJ CC _ 9 cc _ _ 9 swap swap VERB VBP Mood=Ind|Tense=Pres|VerbForm=Fin 5 conj _ _ 10 shells shell NOUN NNS Number=Plur 9 obj _ _ 11 one one NUM CD NumForm=Word|NumType=Card 9 obl _ Agree=R5-strong|Haiku=10:nmod 12 after after ADP IN _ 13 case _ _ 13 another another DET DT PronType=Ind 11 nmod _ _ 14 , , PUNCT , _ 16 punct _ _ 15 each each DET DT PronType=Tot 16 nsubj _ _ 16 moving move VERB VBG Tense=Pres|VerbForm=Part 9 advcl _ Agree=R5-strong|Haiku=3:acl 17 into into ADP IN _ 19 case _ _ 18 the the DET DT Definite=Def|PronType=Art 19 det _ _ 19 shell shell NOUN NN Number=Sing 16 obl _ _ 20 left leave VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 19 acl _ _ 21 by by ADP IN _ 24 case _ _ 22 the the DET DT Definite=Def|PronType=Art 24 det _ _ 23 next next ADJ JJ Degree=Pos 24 amod _ _ 24 biggest big ADJ JJS Degree=Sup 20 obl _ _ 25 ; ; PUNCT , _ 27 punct _ _ 26 scientists scientist NOUN NNS Number=Plur 27 nsubj _ _ 27 call call VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 3 parataxis _ Agree=R8-pos-agree|Haiku=3:parataxis|HaikuPos=VERB:VB:VerbForm=Inf 28 this this PRON DT Number=Sing|PronType=Dem 27 obj _ _ 29 a a DET DT Definite=Ind|PronType=Art 31 det _ _ 30 vacancy vacancy NOUN NN Number=Sing 31 compound _ _ 31 chain chain NOUN NN Number=Sing 27 xcomp _ Agree=R7-rel-agree|Haiku=27:obj 32 . . PUNCT . _ 3 punct _ _ ``` ## Pragmatics {#pragmatics} No stored speech act for this sentence. | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **queue** | present | | | | | | by size; sometimes *property* | tree rules | | 2 | **swap** | present | | shells | | | | one after another *obl* | vn exchange-13.6.1 «NP V NP»: agent=Agent shell=Theme | | 3 | **move** | gerund | each | | | the shell | | | vn roll-51.3.1 «NP V PP.trajectory»: agent=Theme into shell=Trajectory | | 4 | **leave** | participle | | the shell *not said here* | | | | by the next biggest | vn keep-15.2 «NP V NP PP.location»: agent=Agent by big=Location | | 5 | **call** | present | scientists | this | | | | | vn initiate\_communication-37.4.2-1 «NP V NP.recipient»: agent=Agent this=Recipient | 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:330-unusual-pets-stick-insects-giant-snails-ant-farms-and-hermit-crabs.lesson:17`. **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 ×2, R7-rel-agree ×1, R8-pos-agree ×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: [Unusual pets: stick insects, giant sna…, 16](https://md.mova.elamur.ai/free/en/corpora/school/biology/330-unusual-pets-stick-insects-giant-snails-ant-farms-and-hermit-crabs/16/) - next →: [Unusual pets: stick insects, giant sna…, 18](https://md.mova.elamur.ai/free/en/corpora/school/biology/330-unusual-pets-stick-insects-giant-snails-ant-farms-and-hermit-crabs/18/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/biology/330-unusual-pets-stick-insects-giant-snails-ant-farms-and-hermit-crabs/)