--- title: A hermit crab protects its soft, curled body inside an empty sea sna… — What a habitat is: home, food, shelter and fitti… · tree and pragmatics description: A hermit crab protects its soft, curled body inside an empty sea snail shell and moves into a bigger shell as it grows; crabs sometimes line up by size and swap shells in a chain. Who acts: hermit crab, territory, crabs. A sentence of the lesson «What a habitat is: home, food, shelter and fitting in --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/biology/1-what-a-habitat-is/8/) [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/) / [What a habitat is: home, food, shelter…](https://md.mova.elamur.ai/free/en/corpora/school/biology/1-what-a-habitat-is/) / 8 # What a habitat is: home, food, shelter and fitting in, sentence 8 A hermit crab protects its soft, curled body inside an empty sea snail shell and moves into a bigger shell as it grows; crabs sometimes line up by size and swap shells in a chain. **Who acts:** hermit crab, territory, crabs · **What happens:** protect, curl, move, grow, line up, swap · **To what, where:** soft curled body, empty snail shell, bigger shell, shells, chain This is a sentence of the lesson «What a habitat is: home, food, shelter and fitting in» 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 (hermit crab, territory, crabs), what happens, when and where, as Mova's frames read it from the tree. ## The tree {#tree} ```conllu # sent_id = school:biology:001-what-a-habitat-is.lesson:8 # text = A hermit crab protects its soft, curled body inside an empty sea snail shell and moves into a bigger shell as it grows; crabs sometimes line up by size and swap shells in a chain. # source = school lesson (ours) # course = biology # lesson = 001-what-a-habitat-is.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): R8-pos-agree ×1 1 A a DET DT Definite=Ind|PronType=Art 3 det _ _ 2 hermit hermit NOUN NN Number=Sing 3 compound _ _ 3 crab crab NOUN NN Number=Sing 4 nsubj _ _ 4 protects protect VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 5 its its PRON PRP$ Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs 9 nmod:poss _ _ 6 soft soft ADJ JJ Degree=Pos 9 amod _ _ 7 , , PUNCT , _ 6 punct _ _ 8 curled curl VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 9 amod _ _ 9 body body NOUN NN Number=Sing 4 obj _ _ 10 inside inside ADP IN _ 15 case _ _ 11 an a DET DT Definite=Ind|PronType=Art 15 det _ _ 12 empty empty ADJ JJ Degree=Pos 15 amod _ _ 13 sea sea NOUN NN Number=Sing 14 compound _ _ 14 snail snail NOUN NN Number=Sing 15 compound _ _ 15 shell shell NOUN NN Number=Sing 4 obl _ _ 16 and and CCONJ CC _ 17 cc _ _ 17 moves move VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 4 conj _ _ 18 into into ADP IN _ 21 case _ _ 19 a a DET DT Definite=Ind|PronType=Art 21 det _ _ 20 bigger big ADJ JJR Degree=Cmp 21 amod _ _ 21 shell shell NOUN NN Number=Sing 17 obl _ _ 22 as as SCONJ IN _ 24 mark _ _ 23 it it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 24 nsubj _ _ 24 grows grow VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 17 advcl _ _ 25 ; ; PUNCT , _ 26 punct _ _ 26 crabs crab NOUN NNS Number=Plur 28 nsubj _ _ 27 sometimes sometimes ADV RB PronType=Ind 28 advmod _ _ 28 line line VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 4 parataxis _ _ 29 up up ADP RP _ 28 compound:prt _ _ 30 by by ADP IN _ 31 case _ _ 31 size size NOUN NN Number=Sing 28 obl _ _ 32 and and CCONJ CC _ 33 cc _ _ 33 swap swap VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 28 conj _ Agree=R8-pos-agree|Haiku=28:conj|HaikuPos=VERB:VB:VerbForm=Inf 34 shells shell NOUN NNS Number=Plur 33 obj _ _ 35 in in ADP IN _ 37 case _ _ 36 a a DET DT Definite=Ind|PronType=Art 37 det _ _ 37 chain chain NOUN NN Number=Sing 33 obl _ _ 38 . . PUNCT . _ 4 punct _ _ ``` ## Pragmatics {#pragmatics} No stored speech act for this sentence. | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **protect** | present | a hermit crab | territory's soft curled body | | a empty snail shell | | | vn defend-72.3 «NP V NP»: agent=Agent body=Beneficiary | | 2 | **curl** | participle | | | | | | | vn coil-9.6-1 «NP V ADV-Middle»: agent=Theme | | 3 | **move** | present | a hermit crab *not said here* | | | a bigger shell | | | vn roll-51.3.1 «NP V PP.trajectory»: agent=Theme into shell=Trajectory | | 4 | **grow** | present | territory | | | | | | vn appear-48.1.1 «NP V»: agent=Theme | | 5 | **line up** | present | crabs | | | | | by size; sometimes *property* | vn fill-9.8-1 «NP V NP.destination»: agent=Agent | | 6 | **swap** | present | crabs *not said here* | shells | | a chain | | | vn exchange-13.6.1 «NP V NP»: agent=Agent shell=Theme | 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:001-what-a-habitat-is.lesson:8`. **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): 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: [What a habitat is: home, food, shelter…, 7](https://md.mova.elamur.ai/free/en/corpora/school/biology/1-what-a-habitat-is/7/) - next →: [What a habitat is: home, food, shelter…, 9](https://md.mova.elamur.ai/free/en/corpora/school/biology/1-what-a-habitat-is/9/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/biology/1-what-a-habitat-is/)