21.   The mood even turns bittersweet, something unheard of in a studio comedy.

22.   The mood turns from playful and enticingly suggestive to something darker as their haven suddenly seems less safe and stable than it did.

23.   The mood turned ugly when he cooked his second pot a day later.

24.   The mood could turn if a big company issues disappointing earnings.

25.   The mood turns circusy with march music, in a dance crammed with goofy physical humor.

26.   Thursday night he gave up one more run as the mood turned somber and fans turned toward the stairs and the parking lot.

27.   Thursday, however, the mood turned to elation.

28.   When he studied its terms, he said, his mood turned bleak again.

29.   About a dozen workers were arrested and charged with causing a disturbance when the mood on the picket line turned nasty.

30.   But the mood turned ugly as night fell and thousands gathered at the Obelisk, a downtown monument resembling the Washington Monument.