31.   Both casts impersonated the homeless and those who pass by, shifting between the two kinds of lives with equal clarity.

32.   But Ariely, a specialist in both psychology and marketing, sees remarkable parallels in the two kinds of suffering.

33.   But it also confounds certain explanations of how the many kinds of energy and matter emerged from that explosive moment of creation.

34.   But it has also tapped into the one kind of stem cell that is already widely used to treat illness.

35.   But the PUC has yet to lay down the rules by which the two kinds of companies will share the market.

36.   Clot-dissolving drugs like t-PA could be fatal in patients with the other kind of stroke, caused by bleeding in the brain.

37.   Chu thinks traditional and naturopathic physicians know little about one another, and he would like to see more collaboration between the two kinds.

38.   Engineers say that in most urban settings and in close-in suburbs, there may be no performance difference at all between the two kinds of cellular phones.

39.   For example adenine, one of the four kinds of base, can be formed naturally from two common chemicals, ammonia and hydrogen cyanide.

40.   First he switched on all the various kinds of lights.