--- title: Hammerhead sharks have wide heads with an eye at each end, and they… — Reef giants and wanderers: whale sharks, mantas,… · tree and pragmatics description: Hammerhead sharks have wide heads with an eye at each end, and they swing their heads from side to side as they search; some gather in big schools near islands. Who acts: Hammerhead sharks, heads, some. A sentence of the lesson «Reef giants and wanderers: whale sharks, mantas, dugongs and sea turtle --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/biology/174-reef-giants-and-wanderers-whale-sharks-mantas-dugongs-and-sea-turtles/13/) [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/) / [Reef giants and wanderers: whale shark…](https://md.mova.elamur.ai/free/en/corpora/school/biology/174-reef-giants-and-wanderers-whale-sharks-mantas-dugongs-and-sea-turtles/) / 13 # Reef giants and wanderers: whale sharks, mantas, dugongs and sea turtles, sentence 13 Hammerhead sharks have wide heads with an eye at each end, and they swing their heads from side to side as they search; some gather in big schools near islands. **Who acts:** Hammerhead sharks, heads, some · **What happens:** have, swing, search, gather · **To what, where:** wide heads, heads, side, big schools This is a sentence of the lesson «Reef giants and wanderers: whale sharks, mantas, dugongs and sea turtles» 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 (Hammerhead sharks, heads, some), what happens, when and where, as Mova's frames read it from the tree. ## The tree {#tree} ```conllu # sent_id = school:biology:174-reef-giants-and-wanderers-whale-sharks-mantas-dugongs-and-sea-turtles.lesson:13 # text = Hammerhead sharks have wide heads with an eye at each end, and they swing their heads from side to side as they search; some gather in big schools near islands. # source = school lesson (ours) # course = biology # lesson = 174-reef-giants-and-wanderers-whale-sharks-mantas-dugongs-and-sea-turtles.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): R2-punct-next ×1, R5-strong ×1, R7-rel-agree ×1, R8-pos-agree ×2 1 Hammerhead hammerhead NOUN NN Number=Sing 2 compound _ _ 2 sharks shark NOUN NNS Number=Plur 3 nsubj _ _ 3 have have VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 4 wide wide ADJ JJ Degree=Pos 5 amod _ _ 5 heads head NOUN NNS Number=Plur 3 obj _ _ 6 with with ADP IN _ 8 case _ _ 7 an a DET DT Definite=Ind|PronType=Art 8 det _ _ 8 eye eye NOUN NN Number=Sing 5 nmod _ _ 9 at at ADP IN _ 11 case _ _ 10 each each DET DT PronType=Tot 11 det _ _ 11 end end NOUN NN Number=Sing 8 nmod _ _ 12 , , PUNCT , _ 15 punct _ _ 13 and and CCONJ CC _ 15 cc _ _ 14 they they PRON PRP Case=Nom|Number=Plur|Person=3|PronType=Prs 15 nsubj _ _ 15 swing swing VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 3 conj _ _ 16 their their PRON PRP$ Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs 17 nmod:poss _ _ 17 heads head NOUN NNS Number=Plur 15 obj _ _ 18 from from ADP IN _ 19 case _ _ 19 side side NOUN NN Number=Sing 15 obl _ Agree=R5-strong|Haiku=17:nmod 20 to to ADP IN _ 21 case _ Agree=R8-pos-agree|Haiku=21:case|HaikuPos=PART:TO:_ 21 side side NOUN NN Number=Sing 19 nmod _ _ 22 as as SCONJ IN _ 24 mark _ _ 23 they they PRON PRP Case=Nom|Number=Plur|Person=3|PronType=Prs 24 nsubj _ _ 24 search search VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 15 advcl _ _ 25 ; ; PUNCT , _ 27 punct _ Agree=R2-punct-next|Haiku=3:punct 26 some some DET DT PronType=Ind 27 nsubj _ Agree=R8-pos-agree|Haiku=27:nsubj|HaikuPos=PRON:DT:PronType=Ind 27 gather gather VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 3 conj _ _ 28 in in ADP IN _ 30 case _ _ 29 big big ADJ JJ Degree=Pos 30 amod _ _ 30 schools school NOUN NNS Number=Plur 27 obl _ Agree=R7-rel-agree|Haiku=27:nmod 31 near near ADP IN _ 32 case _ _ 32 islands island NOUN NNS Number=Plur 30 nmod _ _ 33 . . 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 | **have** | present | Hammerhead sharks | wide heads | | | | with a eye at each end | vn birth-28.2-1 «NP V NP»: agent=Agent head=Patient | | 2 | **swing** | present | heads *= head* | heads's heads | | side to side | | | vn roll-51.3.1 «NP V NP PP.trajectory»: agent=Agent head=Theme from side=Trajectory | | 3 | **search** | present | heads *= head* | | | | | | vn search-35.2 «NP V PP.location»: agent=Agent | | 4 | **gather** | present | some | | | big schools near islands | | | vn herd-47.5.2 «NP V»: agent=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:174-reef-giants-and-wanderers-whale-sharks-mantas-dugongs-and-sea-turtles.lesson:13`. **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): R2-punct-next ×1, R5-strong ×1, R7-rel-agree ×1, R8-pos-agree ×2. **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: [Reef giants and wanderers: whale shark…, 12](https://md.mova.elamur.ai/free/en/corpora/school/biology/174-reef-giants-and-wanderers-whale-sharks-mantas-dugongs-and-sea-turtles/12/) - next →: [Reef giants and wanderers: whale shark…, 14](https://md.mova.elamur.ai/free/en/corpora/school/biology/174-reef-giants-and-wanderers-whale-sharks-mantas-dugongs-and-sea-turtles/14/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/biology/174-reef-giants-and-wanderers-whale-sharks-mantas-dugongs-and-sea-turtles/)