--- title: Each front tooth has hard enamel at the front and softer stuff at th… — Rodents: the biggest group of mammals and their… · tree and pragmatics description: Each front tooth has hard enamel at the front and softer stuff at the back, so gnawing wears the back faster and keeps a chisel edge. Who acts: front tooth, gnawing. A sentence of the lesson «Rodents: the biggest group of mammals and their ever-growing teeth» of the biology course of Mova's primary --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/biology/316-rodents-the-biggest-group-of-mammals-and-their-ever-growing-teeth/9/) [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/) / [Rodents: the biggest group of mammals…](https://md.mova.elamur.ai/free/en/corpora/school/biology/316-rodents-the-biggest-group-of-mammals-and-their-ever-growing-teeth/) / 9 # Rodents: the biggest group of mammals and their ever-growing teeth, sentence 9 Each front tooth has hard enamel at the front and softer stuff at the back, so gnawing wears the back faster and keeps a chisel edge. **Who acts:** front tooth, gnawing · **What happens:** have, wear, keep · **To what, where:** hard enamel, front, back, chisel edge This is a sentence of the lesson «Rodents: the biggest group of mammals and their ever-growing teeth» 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 (front tooth, gnawing), what happens, when and where, as Mova's frames read it from the tree. ## The tree {#tree} ```conllu # sent_id = school:biology:316-rodents-the-biggest-group-of-mammals-and-their-ever-growing-teeth.lesson:9 # text = Each front tooth has hard enamel at the front and softer stuff at the back, so gnawing wears the back faster and keeps a chisel edge. # source = school lesson (ours) # course = biology # lesson = 316-rodents-the-biggest-group-of-mammals-and-their-ever-growing-teeth.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): R7-rel-agree ×1, R8-pos-agree ×1 1 Each each DET DT PronType=Tot 3 det _ _ 2 front front ADJ JJ Degree=Pos 3 amod _ _ 3 tooth tooth NOUN NN Number=Sing 4 nsubj _ _ 4 has have VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 5 hard hard ADJ JJ Degree=Pos 6 amod _ _ 6 enamel enamel NOUN NN Number=Sing 4 obj _ _ 7 at at ADP IN _ 9 case _ _ 8 the the DET DT Definite=Def|PronType=Art 9 det _ _ 9 front front NOUN NN Number=Sing 6 nmod _ _ 10 and and CCONJ CC _ 12 cc _ _ 11 softer soft ADJ JJR Degree=Cmp 12 amod _ _ 12 stuff stuff NOUN NN Number=Sing 9 conj _ _ 13 at at ADP IN _ 15 case _ _ 14 the the DET DT Definite=Def|PronType=Art 15 det _ _ 15 back back NOUN NN Number=Sing 9 nmod _ _ 16 , , PUNCT , _ 18 punct _ _ 17 so so ADV RB _ 18 advmod _ _ 18 gnawing gnaw NOUN NN Number=Sing 19 nsubj _ Agree=R8-pos-agree|Haiku=19:nsubj|HaikuPos=VERB:VBG:VerbForm=Ger 19 wears wear VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 4 parataxis _ Agree=R7-rel-agree|Haiku=4:conj 20 the the DET DT Definite=Def|PronType=Art 21 det _ _ 21 back back NOUN NN Number=Sing 19 obj _ _ 22 faster fast ADV RBR Degree=Cmp 19 advmod _ _ 23 and and CCONJ CC _ 24 cc _ _ 24 keeps keep VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 19 conj _ _ 25 a a DET DT Definite=Ind|PronType=Art 27 det _ _ 26 chisel chisel NOUN NN Number=Sing 27 compound _ _ 27 edge edge NOUN NN Number=Sing 24 obj _ _ 28 . . PUNCT . _ 4 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 | **have** | present | each front tooth | hard enamel | | the front at the back and softer stuff | | | vn birth-28.2-1 «NP V NP»: agent=Agent enamel=Patient | | 2 | **wear** | present | gnawing | the back | | | | fast *property* | vn wipe\_manner-10.4.1-1 «NP V NP.source»: agent=Agent back=Source | | 3 | **keep** | present | gnawing *not said here* | a chisel edge | | | | | vn keep-15.2 «NP V NP»: agent=Agent edge=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:316-rodents-the-biggest-group-of-mammals-and-their-ever-growing-teeth.lesson:9`. **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): 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: [Rodents: the biggest group of mammals…, 8](https://md.mova.elamur.ai/free/en/corpora/school/biology/316-rodents-the-biggest-group-of-mammals-and-their-ever-growing-teeth/8/) - next →: [Rodents: the biggest group of mammals…, 10](https://md.mova.elamur.ai/free/en/corpora/school/biology/316-rodents-the-biggest-group-of-mammals-and-their-ever-growing-teeth/10/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/biology/316-rodents-the-biggest-group-of-mammals-and-their-ever-growing-teeth/)