41.   But these art powers had another purpose in mind as well.

42.   But this exercise in hyperbolic lunacy has a purpose.

43.   But these markers, some hidden in dank, dark underground caverns and passageways, others exposed in a giant, terraced pit, still have a purpose.

44.   But winter does have its purpose.

45.   But we had a purpose for playing like we play.

46.   Deductions also have a purpose in business, said Benjamin C. Byrd III, tax director at Polaroid, the Cambridge photography company.

47.   Even if they look haphazard, every object has a purpose.

48.   Even if valid, it would have no real purpose except to give management another evaluating tool.

49.   Even economists who suffer from information overload can find the Web has a purpose when it comes to the crisis.

50.   Every pitch had a purpose.