--- title: Mirror puzzles need care: a word reads the same in a flat mirror onl… — Olympiad: sound, light, heat, electricity and ma… · tree and pragmatics description: Mirror puzzles need care: a word reads the same in a flat mirror only if it is spelt the same backwards and uses only letters that look the same flipped, such as A, H, I, M, O, T, U, V, W, X and Y. Who acts: Mirror puzzles, word, letters. A sentence of the lesson «Olympiad: sound, light, heat, elect --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/physics/43-olympiad-sound-light-heat-and-magnets/3/) [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/) / [Olympiad: sound, light, heat, electric…](https://md.mova.elamur.ai/free/en/corpora/school/physics/43-olympiad-sound-light-heat-and-magnets/) / 3 # Olympiad: sound, light, heat, electricity and magnets ★★★, sentence 3 Mirror puzzles need care: a word reads the same in a flat mirror only if it is spelt the same backwards and uses only letters that look the same flipped, such as A, H, I, M, O, T, U, V, W, X and Y. **Who acts:** Mirror puzzles, word, letters · **What happens:** need, read, spell, use, look, flip · **To what, where:** care, same, flat mirror, word, letters This is a sentence of the lesson «Olympiad: sound, light, heat, electricity and magnets ★★★» 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 (Mirror puzzles, word, letters), what happens, when and where, as Mova's frames read it from the tree. ## The tree {#tree} ```conllu # sent_id = school:physics:043-olympiad-sound-light-heat-and-magnets.lesson:3 # text = Mirror puzzles need care: a word reads the same in a flat mirror only if it is spelt the same backwards and uses only letters that look the same flipped, such as A, H, I, M, O, T, U, V, W, X and Y. # source = school lesson (ours) # course = physics # lesson = 043-olympiad-sound-light-heat-and-magnets.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 ×3, R6-punct-agree ×1, R7-rel-agree ×2 1 Mirror mirror NOUN NN Number=Sing 2 compound _ _ 2 puzzles puzzle NOUN NNS Number=Plur 3 nsubj _ _ 3 need need VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 4 care care NOUN NN Number=Sing 3 obj _ _ 5 : : PUNCT : _ 8 punct _ _ 6 a a DET DT Definite=Ind|PronType=Art 7 det _ _ 7 word word NOUN NN Number=Sing 8 nsubj _ _ 8 reads read VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 3 parataxis _ Agree=R7-rel-agree|Haiku=3:conj 9 the the DET DT Definite=Def|PronType=Art 10 det _ _ 10 same same ADJ JJ Degree=Pos 8 obj _ _ 11 in in ADP IN _ 14 case _ _ 12 a a DET DT Definite=Ind|PronType=Art 14 det _ _ 13 flat flat ADJ JJ Degree=Pos 14 amod _ _ 14 mirror mirror NOUN NN Number=Sing 8 obl _ Agree=R5-strong|Haiku=10:obl 15 only only ADV RB _ 19 advmod _ _ 16 if if SCONJ IN _ 19 mark _ _ 17 it it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 19 nsubj:pass _ _ 18 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 19 aux:pass _ _ 19 spelt spell VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 8 advcl _ _ 20 the the DET DT Definite=Def|PronType=Art 21 det _ Agree=R5-strong|Haiku=22:det 21 same same ADJ JJ Degree=Pos 19 obj _ Agree=R5-strong|Haiku=22:amod 22 backwards backward ADV RB _ 19 advmod _ Agree=R7-rel-agree|Haiku=19:obl|HaikuPos=NOUN:NNS:Number=Plur 23 and and CCONJ CC _ 24 cc _ _ 24 uses use VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 19 conj _ _ 25 only only ADV RB _ 26 advmod _ _ 26 letters letter NOUN NNS Number=Plur 24 obj _ _ 27 that that PRON WDT PronType=Rel 28 nsubj _ _ 28 look look VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 26 acl:relcl _ _ 29 the the DET DT Definite=Def|PronType=Art 30 det _ _ 30 same same ADJ JJ Degree=Pos 28 obj _ _ 31 flipped flip VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 28 xcomp _ _ 32 , , PUNCT , _ 35 punct _ _ 33 such such ADJ JJ Degree=Pos|ExtPos=ADP 35 case _ _ 34 as as ADP IN _ 33 fixed _ _ 35 A A PROPN NNP Number=Sing 28 parataxis _ _ 36 , , PUNCT , _ 37 punct _ _ 37 H H PROPN NNP Number=Sing 35 conj _ _ 38 , , PUNCT , _ 39 punct _ Agree=R6-punct-agree|Haiku=41:punct 39 I I PRON PRP Case=Nom|Number=Sing|Person=1|PronType=Prs 41 nsubj _ _ 40 , , PUNCT , _ 41 punct _ _ 41 M M PROPN NNP Number=Sing 19 appos _ _ 42 , , PUNCT , _ 43 punct _ _ 43 O O PROPN NNP Number=Sing 41 flat _ _ 44 , , PUNCT , _ 45 punct _ _ 45 T T PROPN NNP Number=Sing 41 appos _ _ 46 , , PUNCT , _ 47 punct _ _ 47 U U PROPN NNP Number=Sing 45 conj _ _ 48 , , PUNCT , _ 49 punct _ _ 49 V V PROPN NNP Number=Sing 41 conj _ _ 50 , , PUNCT , _ 51 punct _ _ 51 W W PROPN NNP Number=Sing 41 conj _ _ 52 , , PUNCT , _ 53 punct _ _ 53 X X PROPN NNP Number=Sing 41 conj _ _ 54 and and CCONJ CC _ 55 cc _ _ 55 Y Y PROPN NNP Number=Sing 53 conj _ _ 56 . . 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 | **need** | present | Mirror puzzles | care | | | | | vn want-32.1-1-1 «NP V NP ADV»: agent=Pivot care=Theme | | 2 | **read** | present | a word | the same | | a flat mirror | | | vn transfer\_mesg-37.1.1-1 «NP V NP»: agent=Agent same=Topic | | 3 | **spell** *a condition, not said to happen* | present · passive | | word | | | | backward *property* | vn pronounce-29.3.1 «NP V NP NP»: subject=Theme same=Manner | | 4 | **use** | present | | letters | | | | | vn eat-39.1 «NP V NP»: agent=Agent letter=Patient | | 5 | **look** | present | letters | the same | | | | | tree rules | | 6 | **flip** | participle | letters *not said here* | | | | | | vn throw-17.1-1 «NP V NP»: agent=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:043-olympiad-sound-light-heat-and-magnets.lesson:3`. **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 ×3, R6-punct-agree ×1, 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: [Olympiad: sound, light, heat, electric…, 2](https://md.mova.elamur.ai/free/en/corpora/school/physics/43-olympiad-sound-light-heat-and-magnets/2/) - next →: [Olympiad: sound, light, heat, electric…, 4](https://md.mova.elamur.ai/free/en/corpora/school/physics/43-olympiad-sound-light-heat-and-magnets/4/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/physics/43-olympiad-sound-light-heat-and-magnets/)