1.   Investment professionals have floated competing theories about how biotechnology stocks will fare during these grim days of economic downturn.

2.   On occasion, other theories have been floated.

3.   Seminaries float theories that once would have been blasphemous.

4.   Some people tried to float theories of Clemens experiencing back tightness and grimacing in the dugout to explain his wildness.

5.   They float various theories about the real purpose of benching Brown, acting as if everything Reeves does has an ulterior motive.

6.   Other theories were floated to explain the collision.

7.   Why was the lightning theory initially floated?