LB: so, captcha question. Assume the top left square is [0,0], top right is [0,3], and bottom right is [3,3]. It asks for all squares with street signs.

Do you include the framework - [1,0], [2,0], [3,0], [2,3], and [3,3]?

Do you include [2,2] and [2,3], which only include slivers of the signs?