--- title: An ostrich that senses danger and cannot run may lie flat with its n… — Myth check: do ostriches bury their heads in the… · tree and pragmatics description: An ostrich that senses danger and cannot run may lie flat with its neck on the ground, so it is hard to spot from far away. Who acts: ostrich. A sentence of the lesson «Myth check: do ostriches bury their heads in the sand?» of the biology course of Mova's primary school with its dependency tree and --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/biology/151-ostriches-and-heads-in-the-sand/6/) [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/) / [Myth check: do ostriches bury their he…](https://md.mova.elamur.ai/free/en/corpora/school/biology/151-ostriches-and-heads-in-the-sand/) / 6 # Myth check: do ostriches bury their heads in the sand?, sentence 6 An ostrich that senses danger and cannot run may lie flat with its neck on the ground, so it is hard to spot from far away. **Who acts:** ostrich · **What happens:** sense, not run, lie, be, spot · **To what, where:** danger This is a sentence of the lesson «Myth check: do ostriches bury their heads in the sand?» 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 (ostrich), what happens, when and where, as Mova's frames read it from the tree. ## The tree {#tree} ```conllu # sent_id = school:biology:151-ostriches-and-heads-in-the-sand.lesson:6 # text = An ostrich that senses danger and cannot run may lie flat with its neck on the ground, so it is hard to spot from far away. # source = school lesson (ours) # course = biology # lesson = 151-ostriches-and-heads-in-the-sand.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 ×2 1 An a DET DT Definite=Ind|PronType=Art 2 det _ _ 2 ostrich ostrich NOUN NN Number=Sing 11 nsubj _ _ 3 that that PRON WDT PronType=Rel 4 nsubj _ _ 4 senses sense VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 2 acl:relcl _ _ 5 danger danger NOUN NN Number=Sing 4 obj _ _ 6 and and CCONJ CC _ 9 cc _ _ 7 can can AUX MD VerbForm=Fin 9 aux _ _ 8 not not PART RB Polarity=Neg 9 advmod _ _ 9 run run VERB VB VerbForm=Inf 4 conj _ _ 10 may may AUX MD VerbForm=Fin 11 aux _ _ 11 lie lie VERB VB VerbForm=Inf 0 root _ _ 12 flat flat ADV RB _ 11 advmod _ _ 13 with with ADP IN _ 15 case _ _ 14 its its PRON PRP$ Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs 15 nmod:poss _ _ 15 neck neck NOUN NN Number=Sing 11 obl _ _ 16 on on ADP IN _ 18 case _ _ 17 the the DET DT Definite=Def|PronType=Art 18 det _ _ 18 ground ground NOUN NN Number=Sing 15 nmod _ _ 19 , , PUNCT , _ 23 punct _ _ 20 so so ADV RB _ 23 advmod _ _ 21 it it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 23 expl _ _ 22 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 23 cop _ _ 23 hard hard ADJ JJ Degree=Pos 11 parataxis _ Agree=R7-rel-agree|Haiku=11:conj 24 to to PART TO _ 25 mark _ _ 25 spot spot VERB VB VerbForm=Inf 23 csubj _ Agree=R7-rel-agree|Haiku=23:xcomp 26 from from ADP IN _ 27 case _ _ 27 far far ADV RB Degree=Pos 25 advmod _ _ 28 away away ADV RB _ 27 advmod _ _ 29 . . PUNCT . _ 11 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 | **sense** | present | a ostrich | danger | | | | | vn see-30.1-1 «NP V S»: agent=Experiencer danger=Stimulus | | 2 | **not** **run** | can | a ostrich *not said here* | | | | | | vn run-51.3.2-2-1 «NP V»: agent=Theme | | 3 | **lie** | may | a ostrich | | | | | with ostrich's neck on the ground; flat *property* | vn assuming\_position-50 «NP V»: agent=Agent | | 4 | **is** | present | | | | | | hard *property* | tree rules | | 5 | **spot** | to-infinitive | | | | | | far *property* | vn weather-57 «It V PP.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:151-ostriches-and-heads-in-the-sand.lesson:6`. **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 ×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: [Myth check: do ostriches bury their he…, 5](https://md.mova.elamur.ai/free/en/corpora/school/biology/151-ostriches-and-heads-in-the-sand/5/) - next →: [Myth check: do ostriches bury their he…, 7](https://md.mova.elamur.ai/free/en/corpora/school/biology/151-ostriches-and-heads-in-the-sand/7/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/biology/151-ostriches-and-heads-in-the-sand/)