--- title: A hammerhead's wide head spreads its eyes and electric sensors far a… — Sharks by kind: great white, tiger, bull and ham… · tree and pragmatics description: A hammerhead's wide head spreads its eyes and electric sensors far apart, sweeping the sand like a metal detector for hidden stingrays and helping it see further around; great hammerheads pin stingrays down with their heads. Who acts: wide head, sand, great hammerheads. A sentence of the lesson «Sha --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/biology/310-sharks-by-kind-great-white-tiger-bull-and-hammerhead/18/) [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/) / [Sharks by kind: great white, tiger, bu…](https://md.mova.elamur.ai/free/en/corpora/school/biology/310-sharks-by-kind-great-white-tiger-bull-and-hammerhead/) / 18 # Sharks by kind: great white, tiger, bull and hammerhead, sentence 18 A hammerhead's wide head spreads its eyes and electric sensors far apart, sweeping the sand like a metal detector for hidden stingrays and helping it see further around; great hammerheads pin stingrays down with their heads. **Who acts:** wide head, sand, great hammerheads · **What happens:** spread, sweep, help, see, pin down · **To what, where:** eyes, sand, stingrays This is a sentence of the lesson «Sharks by kind: great white, tiger, bull and hammerhead» 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 (wide head, sand, great hammerheads), what happens, when and where, as Mova's frames read it from the tree. ## The tree {#tree} ```conllu # sent_id = school:biology:310-sharks-by-kind-great-white-tiger-bull-and-hammerhead.lesson:18 # text = A hammerhead's wide head spreads its eyes and electric sensors far apart, sweeping the sand like a metal detector for hidden stingrays and helping it see further around; great hammerheads pin stingrays down with their heads. # source = school lesson (ours) # course = biology # lesson = 310-sharks-by-kind-great-white-tiger-bull-and-hammerhead.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, R7-rel-agree ×1 1 A a DET DT Definite=Ind|PronType=Art 2 det _ _ 2 hammerhead hammerhead NOUN NN Number=Sing 5 nmod:poss _ _ 3 's 's PART POS _ 2 case _ _ 4 wide wide ADJ JJ Degree=Pos 5 amod _ _ 5 head head NOUN NN Number=Sing 6 nsubj _ _ 6 spreads spread VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 7 its its PRON PRP$ Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs 8 nmod:poss _ _ 8 eyes eye NOUN NNS Number=Plur 6 obj _ _ 9 and and CCONJ CC _ 11 cc _ _ 10 electric electric ADJ JJ Degree=Pos 11 amod _ _ 11 sensors sensor NOUN NNS Number=Plur 8 conj _ _ 12 far far ADV RB Degree=Pos 13 advmod _ _ 13 apart apart ADV RB _ 6 advmod _ _ 14 , , PUNCT , _ 13 punct _ _ 15 sweeping sweep VERB VBG Tense=Pres|VerbForm=Part 6 advcl _ Agree=R5-strong|Haiku=13:advcl 16 the the DET DT Definite=Def|PronType=Art 17 det _ _ 17 sand sand NOUN NN Number=Sing 15 obj _ _ 18 like like ADP IN _ 21 case _ _ 19 a a DET DT Definite=Ind|PronType=Art 21 det _ _ 20 metal metal NOUN NN Number=Sing 21 compound _ _ 21 detector detector NOUN NN Number=Sing 15 obl _ _ 22 for for ADP IN _ 24 case _ _ 23 hidden hidden ADJ JJ Degree=Pos 24 amod _ _ 24 stingrays stingray NOUN NNS Number=Plur 21 nmod _ _ 25 and and CCONJ CC _ 26 cc _ _ 26 helping help VERB VBG Tense=Pres|VerbForm=Part 15 conj _ _ 27 it it PRON PRP Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs 26 obj _ _ 28 see see VERB VB VerbForm=Inf 26 xcomp _ _ 29 further further ADV RB _ 30 advmod _ _ 30 around around ADV RB _ 28 advmod _ _ 31 ; ; PUNCT : _ 6 punct _ _ 32 great great ADJ JJ Degree=Pos 33 amod _ _ 33 hammerheads hammerhead NOUN NNS Number=Plur 34 nsubj _ _ 34 pin pin VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 6 parataxis _ _ 35 stingrays stingray NOUN NNS Number=Plur 34 obj _ _ 36 down down ADV RB _ 34 advmod _ Agree=R7-rel-agree|Haiku=34:compound:prt|HaikuPos=ADP:RP:_ 37 with with ADP IN _ 39 case _ _ 38 their their PRON PRP$ Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs 39 nmod:poss _ _ 39 heads head NOUN NNS Number=Plur 34 obl _ _ 40 . . PUNCT . _ 6 punct _ _ ``` ## Pragmatics {#pragmatics} No stored speech act for this sentence. | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **spread** | present | a hammerhead's wide head | head's eyes and electric sensors | | | | apart *property* | vn appear-48.1.1 «PP.location V NP»: agent=Location eye=Theme | | 2 | **sweep** | gerund | a hammerhead's wide head *not said here* | the sand | | | | like a metal detector for hidden stingrays | vn run-51.3.2-1 «NP V NP»: agent=Theme sand=Trajectory | | 3 | **help** | gerund | a hammerhead's wide head *not said here* | sand | | | | | vn help-72.1-1-1 «NP V NP S\_INF»: agent=Agent it=Beneficiary clause=Theme | | 4 | **see** | infinitive | sand *not said here* | | | | | around *property* | vn comprehend-87.2-1-1 «NP V»: agent=Experiencer | | 5 | **pin down** | present | great hammerheads | stingrays | | | | with Sharks's heads; down *property* | vn tape-22.4 «NP V NP PP.co-patient PP.instrument»: agent=Agent stingray=Patient with head=Instrument | 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:310-sharks-by-kind-great-white-tiger-bull-and-hammerhead.lesson:18`. **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, R7-rel-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: [Sharks by kind: great white, tiger, bu…, 17](https://md.mova.elamur.ai/free/en/corpora/school/biology/310-sharks-by-kind-great-white-tiger-bull-and-hammerhead/17/) - next →: [Sharks by kind: great white, tiger, bu…, 19](https://md.mova.elamur.ai/free/en/corpora/school/biology/310-sharks-by-kind-great-white-tiger-bull-and-hammerhead/19/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/biology/310-sharks-by-kind-great-white-tiger-bull-and-hammerhead/)