Does the sentence "He became king at a point when public faith in the monarchy was at a low ebb." provide a valid answer to the question "Who was George VI's brother?" OPTIONS:
- yes
- no

A: no

Does the sentence "The family who returned the city to Christianity were called the Hautevilles, including Robert Guiscard and his army, who is regarded as a hero by the natives." provide a valid answer to the question "Who is considered a hero by natives for ending Muslim control of Palermo?" OPTIONS:
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- no

A: yes

Does the sentence "Comparative and historical linguistics offers some clues for memorising the accent position: If one compares many standard Serbo-Croatian words to e.g. cognate Russian words, the accent in the Serbo-Croatian word will be one syllable before the one in the Russian word, with the rising tone." provide a valid answer to the question "Where can one look for memorization clues concerning accent positions?" OPTIONS:
- yes
- no

A: yes

Does the sentence "The theory was later modified to reflect new discoveries regarding histocompatibility or the complex "two-signal" activation of T cells." provide a valid answer to the question "What medical scientist first proposed the clonal selection theory of immunology?" OPTIONS:
- yes
- no

A:
no