question: OPTIONS:
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There are a few types of existing bilaterians that lack a recognizable brain, including echinoderms, tunicates, and acoelomorphs (a group of primitive flatworms).
Some bilaterians without a brain are what?

answer: yes

[Q]: Sentence: He routinely refused to be included in lists or books that classified people by race. Question: Feynman did not like to be listed in anything that labeled people by what standard? OPTIONS:
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++++++++++
[A]: yes

Q: Does "Dawa Norbu argues that modern Chinese Communist historians tend to be in favor of the view that the Ming simply reappointed old Yuan dynasty officials in Tibet and perpetuated their rule of Tibet in this manner." provide a valid answer to "Who believed the Ming reappointed old Yuan dynasty officials in Tibet?"?
OPTIONS:
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A: yes

Problem: Does "Notable Greek seafarers include people such as Pytheas of Marseilles, Scylax of Caryanda who sailed to Iberia and beyond, Nearchus, the 6th century merchant and later monk Cosmas Indicopleustes (Cosmas who sailed to India) and the explorer of the Northwestern passage Juan de Fuca." answer the question "What did Greeks do that caused a later deal to be made with the Italians ?" OPTIONS:
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A: no

Does the sentence "Besides the absence of vowel reduction, some dialects have high or diphthongal /e" provide a valid answer to the question "What region of dialects is the Volga River area in?" OPTIONS:
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A: no

Does the sentence "According to the official website, the main aims of the Ministry for Foreign Affairs are to represent Greece before other states and international organizations; safeguarding the interests of the Greek state and of its citizens abroad; the promotion of Greek culture; the fostering of closer relations with the Greek diaspora; and the promotion of international cooperation." provide a valid answer to the question "Who is the head for Greece's foreign policy?" OPTIONS:
- yes
- no

A:
no