Sentence 1: In his own autobiography '' Long Walk to Freedom '' , Nelson Mandela mentions James Gregory in two cases : the first one during his imprisonment in Pollsmoor :
Sentence 2: In his own autobiography , '' Long Walk to Freedom '' , James Gregory mentions Nelson Mandela in two occasions . The first was during his imprisonment in Pollsmoor :

Do these two sentences convey the same information?

Options:
A). no;
B). yes;
A).