1.   And just as I was about to ascend the stairway, a guy came running down the stairs two steps at a time.

2.   Bulldozed sites for high-end houses climb the next hill like giant stair steps.

3.   Reading scores among elementary pupils over the last five years have risen like a series of stair steps.

4.   She would parrot the whir of a helicopter, pause on each stair step to kiss her parents through the banister.

5.   For example, signs posted on stair steps at Fuchu order inmates to walk on the white line and not to talk or look around.