51.  But movie theaters cannot have columns blocking sight lines, and without them, all that weight on the roof would be sitting over a lot of empty space.

52.  But splitting Rome between two bases would take advantage of existing empty space.

53.  But they create visual paradoxes of personal symbols and empty spaces, visual contradictions with no evident meaning or obvious skill, that make many viewers uncomfortable.

54.  But the enormity of the empty space is what hits visitors as they watch the recovery workers go about their daunting task.

55.  But two new reports presented Tuesday by astronomers here show that the empty space contains stars and clouds of gas.

56.  But there are empty spaces where their faces ought to be, and that pretty much sums up the problems with E-World in general.

57.  Can empty space be stirred like pancake batter?

58.  Children crammed both floors, their presence masking the shabbiness of the furniture and filling the empty spaces on the yellowed walls.

59.  Consequently, when they bloom there will be empty spaces among them, which is fine for the landscape scheme and for eventual naturalizing.

60.  Despite such marvels of urban architecture, New Yorkers and even some tourists still found the plaza short on espresso and sun umbrellas and long on empty space.