Does the sentence "The Edwardian era in the United Kingdom is the period spanning the reign of King Edward VII up to the end of the First World War, including the years surrounding the sinking of the RMS Titanic." provide a valid answer to the question "What is the Edwardian era?" OPTIONS:
- yes
- no

A: yes

Does the sentence "However, an examination of mammalian teeth suggests that it is the open, gritty habitat and not the grass itself which is linked to diet changes in mammals, giving rise to the "grit, not grass" hypothesis." provide a valid answer to the question "the spread of grasslands and what have been strongly linked?" OPTIONS:
- yes
- no

A: no

Does the sentence "Her cousin Margaret Rhodes described her as "a jolly little girl, but fundamentally sensible and well-behaved"." provide a valid answer to the question "When was Princess Margaret born?" OPTIONS:
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- no

A: no

Does the sentence "As such, the meaning of the expression varies widely both between and within societies, and depends significantly on context." provide a valid answer to the question "Can the term "black people" have different meanings?" OPTIONS:
- yes
- no

A:
yes