31.   But the lingering smoke was a reminder of his visit.

32.   But where there is smoke ...

33.   But, as it turned out, there was more smoke than fire.

34.   Canton firefighters ordered the evacuation, fearing the smoke might be toxic.

35.   Cigarette smoke is everywhere.

36.   Cigarette smoke was everywhere.

37.   Cigarette smoke is bad for both you and the computer.

38.   Cigar smoke is still as much a scent of the track as the horses themselves.

39.   Cigarette smoke was quite literally everywhere in the air we breathed.

40.   Data cited by the tobacco industry to show that second-hand smoke is not a significant hazard in workplaces was faked, say three workers who helped make the measurements.