--- title: The Earth's magnetic field also guides charged bits from the Sun dow… — Compasses and the magnetic Earth · tree and pragmatics description: The Earth's magnetic field also guides charged bits from the Sun down near the poles, where they make the air glow as the northern lights, and many birds can feel the field and use it to find their way. Who acts: magnetic field, bits, many birds. A sentence of the lesson «Compasses and the magnetic --- [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/4/) [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/) / 4 # Compasses and the magnetic Earth, sentence 4 The Earth's magnetic field also guides charged bits from the Sun down near the poles, where they make the air glow as the northern lights, and many birds can feel the field and use it to find their way. **Who acts:** magnetic field, bits, many birds · **What happens:** guide, charge, make, feel, use, find · **To what, where:** charged bits, Sun, air glow, field, way 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 (magnetic field, bits, many birds), 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:4 # text = The Earth's magnetic field also guides charged bits from the Sun down near the poles, where they make the air glow as the northern lights, and many birds can feel the field and use it to find their way. # 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): R8-pos-agree ×1 1 The the DET DT Definite=Def|PronType=Art 2 det _ _ 2 Earth Earth PROPN NNP Number=Sing 5 nmod:poss _ _ 3 's 's PART POS _ 2 case _ _ 4 magnetic magnetic ADJ JJ Degree=Pos 5 amod _ _ 5 field field NOUN NN Number=Sing 7 nsubj _ _ 6 also also ADV RB _ 7 advmod _ _ 7 guides guide VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 8 charged charge VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 9 amod _ Agree=R8-pos-agree|Haiku=9:amod|HaikuPos=ADJ:JJ:Degree=Pos 9 bits bit NOUN NNS Number=Plur 7 obj _ _ 10 from from ADP IN _ 12 case _ _ 11 the the DET DT Definite=Def|PronType=Art 12 det _ _ 12 Sun Sun PROPN NNP Number=Sing 9 nmod _ _ 13 down down ADV RB _ 16 advmod _ _ 14 near near ADP IN _ 16 case _ _ 15 the the DET DT Definite=Def|PronType=Art 16 det _ _ 16 poles pole NOUN NNS Number=Plur 7 obl _ _ 17 , , PUNCT , _ 20 punct _ _ 18 where where ADV WRB PronType=Rel 20 advmod _ _ 19 they they PRON PRP Case=Nom|Number=Plur|Person=3|PronType=Prs 20 nsubj _ _ 20 make make VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 16 acl:relcl _ _ 21 the the DET DT Definite=Def|PronType=Art 23 det _ _ 22 air air NOUN NN Number=Sing 23 compound _ _ 23 glow glow NOUN NN Number=Sing 20 obj _ _ 24 as as ADP IN _ 27 case _ _ 25 the the DET DT Definite=Def|PronType=Art 27 det _ _ 26 northern northern ADJ JJ Degree=Pos 27 amod _ _ 27 lights light NOUN NNS Number=Plur 20 obl _ _ 28 , , PUNCT , _ 33 punct _ _ 29 and and CCONJ CC _ 33 cc _ _ 30 many many ADJ JJ Degree=Pos 31 amod _ _ 31 birds bird NOUN NNS Number=Plur 33 nsubj _ _ 32 can can AUX MD VerbForm=Fin 33 aux _ _ 33 feel feel VERB VB VerbForm=Inf 20 conj _ _ 34 the the DET DT Definite=Def|PronType=Art 35 det _ _ 35 field field NOUN NN Number=Sing 33 obj _ _ 36 and and CCONJ CC _ 37 cc _ _ 37 use use VERB VB VerbForm=Inf 33 conj _ _ 38 it it PRON PRP Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs 37 obj _ _ 39 to to PART TO _ 40 mark _ _ 40 find find VERB VB VerbForm=Inf 37 advcl _ _ 41 their their PRON PRP$ Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs 42 nmod:poss _ _ 42 way way NOUN NN Number=Sing 40 obj _ _ 43 . . PUNCT . _ 7 punct _ _ ``` ## Pragmatics {#pragmatics} No stored speech act for this sentence. | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **guide** | present | the Earth's magnetic field | charged bits | | the Sun | | near the poles | vn accompany-51.7 «NP V NP PP.destination»: agent=Agent bit=Theme near pole=Destination | | 2 | **charge** | participle | | | | | | | vn run-51.3.2 «NP V»: agent=Theme | | 3 | **make** | present | bits *= bit* | the air glow | | | | as the northern lights | vn build-26.1-1 «NP.asset V NP»: agent=Asset glow=Product | | 4 | **feel** | can | many birds | the field | | | | | vn hunt-35.1 «NP V NP»: agent=Agent field=Theme | | 5 | **use** | infinitive | many birds *not said here* | field | | | | | vn eat-39.1 «NP V NP»: agent=Agent it=Patient | | 6 | **find** | to-infinitive | many birds *not said here* | birds's way | | | | | vn discover-84 «NP V NP»: agent=Agent way=Topic | 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:4`. **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): 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: [Compasses and the magnetic Earth, 3](https://md.mova.elamur.ai/free/en/corpora/school/physics/30-compasses-and-the-magnetic-earth/3/) - next →: [Compasses and the magnetic Earth, 5](https://md.mova.elamur.ai/free/en/corpora/school/physics/30-compasses-and-the-magnetic-earth/5/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/physics/30-compasses-and-the-magnetic-earth/)