--- title: The whole Earth behaves like a giant magnet, and a compass needle is… — Compasses and the magnetic Earth · tree and pragmatics description: The whole Earth behaves like a giant magnet, and a compass needle is simply a little magnet free to turn, so it lines up with the Earth's pull and points north. Who acts: whole Earth, compass needle, needle, Earth. A sentence of the lesson «Compasses and the magnetic Earth» of the physics course of --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/physics/30-compasses-and-the-magnetic-earth/0/) [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/) / [Physics](https://md.mova.elamur.ai/free/en/corpora/school/physics/) / [Compasses and the magnetic Earth](https://md.mova.elamur.ai/free/en/corpora/school/physics/30-compasses-and-the-magnetic-earth/) / 0 # Compasses and the magnetic Earth, sentence 0 The whole Earth behaves like a giant magnet, and a compass needle is simply a little magnet free to turn, so it lines up with the Earth's pull and points north. **Who acts:** whole Earth, compass needle, needle, Earth · **What happens:** behave, be, turn, line up, point, pull This is a sentence of the lesson «Compasses and the magnetic Earth» of the physics 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 (whole Earth, compass needle, needle, Earth), what happens, when and where, as Mova's frames read it from the tree. ## The tree {#tree} ```conllu # sent_id = school:physics:030-compasses-and-the-magnetic-earth.lesson:0 # text = The whole Earth behaves like a giant magnet, and a compass needle is simply a little magnet free to turn, so it lines up with the Earth's pull and points north. # source = school lesson (ours) # course = physics # lesson = 030-compasses-and-the-magnetic-earth.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 1 The the DET DT Definite=Def|PronType=Art 3 det _ _ 2 whole whole ADJ JJ Degree=Pos 3 amod _ _ 3 Earth Earth PROPN NNP Number=Sing 4 nsubj _ _ 4 behaves behave VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 5 like like ADP IN _ 8 case _ _ 6 a a DET DT Definite=Ind|PronType=Art 8 det _ _ 7 giant giant ADJ JJ Degree=Pos 8 amod _ _ 8 magnet magnet NOUN NN Number=Sing 4 obl _ _ 9 , , PUNCT , _ 19 punct _ _ 10 and and CCONJ CC _ 19 cc _ _ 11 a a DET DT Definite=Ind|PronType=Art 13 det _ _ 12 compass compass NOUN NN Number=Sing 13 compound _ _ 13 needle needle NOUN NN Number=Sing 19 nsubj _ _ 14 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 19 cop _ _ 15 simply simply ADV RB _ 19 advmod _ _ 16 a a DET DT Definite=Ind|PronType=Art 18 det _ _ 17 little little ADJ JJ Degree=Pos 18 amod _ _ 18 magnet magnet NOUN NN Number=Sing 13 appos _ _ 19 free free ADJ JJ Degree=Pos 4 conj _ _ 20 to to PART TO _ 21 mark _ _ 21 turn turn VERB VB VerbForm=Inf 19 advcl _ Agree=R7-rel-agree|Haiku=19:xcomp 22 , , PUNCT , _ 25 punct _ _ 23 so so ADV RB _ 25 advmod _ _ 24 it it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 25 nsubj _ _ 25 lines line VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 4 conj _ _ 26 up up ADP RP _ 25 compound:prt _ _ 27 with with ADP IN _ 31 case _ _ 28 the the DET DT Definite=Def|PronType=Art 29 det _ _ 29 Earth Earth PROPN NNP Number=Sing 31 nmod:poss _ _ 30 's 's PART POS _ 29 case _ _ 31 pull pull NOUN NN Number=Sing 25 obl _ _ 32 and and CCONJ CC _ 33 cc _ _ 33 points point VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 25 conj _ _ 34 north north ADV RB _ 33 advmod _ _ 35 . . 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 | **behave** | present | the whole Earth | | | | | like a giant magnet | vn masquerade-29.6-1 «NP V PP.attribute»: agent=Agent like magnet=Attribute | | 2 | **is** | present | a compass needle | | | | | free, simply *property* | tree rules | | 3 | **turn** | to-infinitive | a compass needle *not said here* | | | | | | vn roll-51.3.1 «NP.theme V»: agent=Theme | | 4 | **line up** | present | needle | | | | | with the Earth's pull | vn fill-9.8-1 «NP V NP»: agent=Theme | | 5 | **point** | present | needle *not said here* | | | | | north *property* | vn wink-40.3.1 «NP V»: agent=Agent | | 6 | **pull** | | the Earth | | | | | | nom pull «act transitive»: poss=agent | 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:physics:030-compasses-and-the-magnetic-earth.lesson:0`. **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. **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: [Magnets: pulling and pushing without t…, 15](https://md.mova.elamur.ai/free/en/corpora/school/physics/29-magnets-pulling-and-pushing-without-touching/15/) - next →: [Compasses and the magnetic Earth, 1](https://md.mova.elamur.ai/free/en/corpora/school/physics/30-compasses-and-the-magnetic-earth/1/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/physics/30-compasses-and-the-magnetic-earth/)