--- title: Count them: a Cambrian scene has 2 Opabinia, each with 5 eyes, and 1… — How old is it? Rock layers, rock clock… · tree and pragmatics description: Count them: a Cambrian scene has 2 Opabinia, each with 5 eyes, and 1 trilobite with 2 eyes. How many eyes in all? Test 10 · ★ of lesson 276 «How old is it? Rock layers, rock clocks, amber and the long story of life» of the biology course of Mova's primary school, with the dependency tree and pragmat --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/biology/276-how-old-is-it-rock-layers-rock-clocks-amber-and-the-long-story-of-life/t10/) [home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [questions](https://md.mova.elamur.ai/free/en/corpora/questions/) / [Biology](https://md.mova.elamur.ai/free/en/corpora/questions/biology/) / [How old is it? Rock layers, rock clock…](https://md.mova.elamur.ai/free/en/corpora/questions/biology/276-how-old-is-it-rock-layers-rock-clocks-amber-and-the-long-story-of-life/) / t10 # Test 10 · ★ · How old is it? Rock layers, rock clocks, amber and the lon… Count them: a Cambrian scene has 2 Opabinia, each with 5 eyes, and 1 trilobite with 2 eyes. How many eyes in all? **Mova's choice:** option 1 · **The right answer:** option 4 · wrong ✗ · **Who acts:** you, Cambrian scene · **What happens:** count, have · **To what, where:** them, 2 Opabinia This is test 10 · ★ of lesson 276 «How old is it? Rock layers, rock clocks, amber and the long story of life» of the biology course of Mova's primary school. The page gives the question's syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause, then the 4 options as the student saw them, each with its tree and pragmatics. Every text is parsed by Mova itself. How the student answered it, with the score of every option and why: [the test at school](https://md.mova.elamur.ai/free/en/school-run/biology/276-how-old-is-it-rock-layers-rock-clocks-amber-and-the-long-story-of-life/#t10). ## The question {#question} *Sentence 1:* Count them: a Cambrian scene has 2 Opabinia, each with 5 eyes, and 1 trilobite with 2 eyes. ```conllu # sent_id = question:biology:276-how-old-is-it-rock-layers-rock-clocks-amber-and-the-long-story-of-life:t10:1 # text = Count them: a Cambrian scene has 2 Opabinia, each with 5 eyes, and 1 trilobite with 2 eyes. 1 Count count VERB VB Mood=Imp|VerbForm=Fin 0 root _ _ 2 them they PRON PRP Case=Acc|Number=Plur|Person=3|PronType=Prs 1 obj _ SpaceAfter=No 3 : : PUNCT : _ 7 punct _ _ 4 a a DET DT Definite=Ind|PronType=Art 6 det _ _ 5 Cambrian cambrian ADJ JJ Degree=Pos 6 amod _ _ 6 scene scene NOUN NN Number=Sing 7 nsubj _ _ 7 has have VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 1 parataxis _ _ 8 2 2 NUM CD NumForm=Digit|NumType=Card 9 nummod _ _ 9 Opabinia Opabinia PROPN NNP Number=Sing 7 obj _ SpaceAfter=No 10 , , PUNCT , _ 11 punct _ _ 11 each each DET DT PronType=Tot 7 obl _ _ 12 with with ADP IN _ 14 case _ _ 13 5 5 NUM CD NumForm=Digit|NumType=Card 14 nummod _ _ 14 eyes eye NOUN NNS Number=Plur 11 nmod _ SpaceAfter=No 15 , , PUNCT , _ 18 punct _ _ 16 and and CCONJ CC _ 18 cc _ _ 17 1 1 NUM CD NumForm=Digit|NumType=Card 18 nummod _ _ 18 trilobite trilobite NOUN NN Number=Sing 7 conj _ _ 19 with with ADP IN _ 21 case _ _ 20 2 2 NUM CD NumForm=Digit|NumType=Card 21 nummod _ _ 21 eyes eye NOUN NNS Number=Plur 18 nmod _ SpaceAfter=No 22 . . PUNCT . _ 1 punct _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **count** | imperative | you *not said here* | them *= they* | | | | | vn multiply-108 «NP V NP»: agent=Agent they=Theme | | 2 | **have** | present | a Cambrian scene | 2 Opabinia | | | | each *obl* | vn birth-28.2-1 «NP V NP»: agent=Agent opabinia=Patient | 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. *Sentence 2:* How many eyes in all? ```conllu # sent_id = question:biology:276-how-old-is-it-rock-layers-rock-clocks-amber-and-the-long-story-of-life:t10:2 # text = How many eyes in all? 1 How how ADV WRB PronType=Int 2 advmod _ _ 2 many many ADJ JJ Degree=Pos 3 amod _ _ 3 eyes eye NOUN NNS Number=Plur 0 root _ _ 4 in in ADP IN _ 5 case _ _ 5 all all DET DT PronType=Tot 3 nmod _ SpaceAfter=No 6 ? ? PUNCT . _ 3 punct _ _ ``` The frames reader finds no event or fact in this sentence. ## The options {#options} ### Option 1 · ← Mova's choice {#o1} 10 ```conllu # sent_id = question:biology:276-how-old-is-it-rock-layers-rock-clocks-amber-and-the-long-story-of-life:t10:o1:1 # text = 10 1 10 10 NUM CD NumForm=Digit|NumType=Card 0 root _ _ ``` The frames reader finds no event or fact in this sentence. ### Option 2 {#o2} 15 ```conllu # sent_id = question:biology:276-how-old-is-it-rock-layers-rock-clocks-amber-and-the-long-story-of-life:t10:o2:1 # text = 15 1 15 15 NUM CD NumForm=Digit|NumType=Card 0 root _ _ ``` The frames reader finds no event or fact in this sentence. ### Option 3 {#o3} 7 ```conllu # sent_id = question:biology:276-how-old-is-it-rock-layers-rock-clocks-amber-and-the-long-story-of-life:t10:o3:1 # text = 7 1 7 7 NUM CD NumForm=Digit|NumType=Card 0 root _ _ ``` The frames reader finds no event or fact in this sentence. ### Option 4 · ✓ the right answer {#o4} 12 ```conllu # sent_id = question:biology:276-how-old-is-it-rock-layers-rock-clocks-amber-and-the-long-story-of-life:t10:o4:1 # text = 12 1 12 12 NUM CD NumForm=Digit|NumType=Card 0 root _ _ ``` The frames reader finds no event or fact in this sentence. **Text:** the tests of Mova's primary school, written for Mova (`world/data/school/`), as the course runner gave them to the student. **Trees:** Mova's own parse — the `en` model on the CPU, when the site is built — not checked by a teacher; they may be wrong. **Frames:** Mova's frames reader (`prag`), each text read on its own. Elamur Cosmic License. - ← previous: [How old is it? Rock layers, rock clock…, test 9](https://md.mova.elamur.ai/free/en/corpora/questions/biology/276-how-old-is-it-rock-layers-rock-clocks-amber-and-the-long-story-of-life/t9/) - next →: [How old is it? Rock layers, rock clock…, test 11](https://md.mova.elamur.ai/free/en/corpora/questions/biology/276-how-old-is-it-rock-layers-rock-clocks-amber-and-the-long-story-of-life/t11/) - ↑ back to [How old is it? Rock layers, rock clocks, amber and the long story of life](https://md.mova.elamur.ai/free/en/corpora/questions/biology/276-how-old-is-it-rock-layers-rock-clocks-amber-and-the-long-story-of-life/)