1.  But marine biologist and shark specialist Richard Fitzpatrick, of Oceanworld marine park, Sydney, said the two attacks were coincidental and not part of an emerging trend.

2.  Although no one was hurt in the other attacks, the police have stepped up security around token booths, fearing more copycat assaults.

3.  Another option is to separate adults and teenagers, because the first three attacks were by adult males on teen-age girls.

4.  Aside from the fact that the two attacks occurred on the same evening, American military officers said they could see no connection.

5.  A Pentagon official said there would be no announcement Saturday about whether any of the other attacks were successful.

6.  A look at similarities and connections between the two attacks.

7.  But detectives had developed evidence, they said, that some of the other attacks may be the work of one or two prolific assailants.

8.  But Alan Fry, a senior anti-terrorist police officer, said he was linking the three attacks.

9.  But Pakistan, as well as several of the militant groups critical of the recent peace initiative, denied any responsibility for the multiple attacks.

10.  But the two attacks may have a common denominator.