1.   The woman laughed but in a strangled, off-key kind of way and it struck me that she might be insane.

2.   The women laughed coarsely at some vulgar joke.

3.   The women laughed coarsely at some vulgar jokes.

4.   Both women laughed at him.

5.   The village woman laughed a hearty laugh.

6.   And both women laughed.

7.   And the women will laugh and need another picture, as if to document the moment of this great epiphany.

8.   Asked if she has voted, the woman laughs so hard she begins to cough.

9.   Both women laughed.

10.   A woman laughed uncontrollably.