def same_sentence(c):
return all(<EOL>_to_span(c[i]).sentence is not None<EOL>and _to_span(c[i]).sentence == _to_span(c[<NUM_LIT:0>]).sentence<EOL>for i in range(len(c))<EOL>)<EOL>
Return True if all Mentions in the given candidate are from the same Sentence.

    :param c: The candidate whose Mentions are being compared
    :rtype: boolean