Sentence 1: Lahore governor Malik Ikhtyaruddin Qaraqash held the Mongols , while the Mongols fled the city for a few years under the rule of the Mongol chief Toghrul .
Sentence 2: Governor Malik Ikhtyaruddin Qaraqash held the Mongols , while the Mongols , under the rule of the Mongolian chief Toghrul , fled from the city for a few years .

Do these two sentences convey the same information?

Pick from:
(a). no;
(b). yes;
(b).