51.   But competition has been building from companies that offer Pentium-compatible chips with the same power for less money.

52.   But in a discipline where sweeping theories must be built from scant evidence, it is no surprise to find frequent contention.

53.   But most experts say the changes will be profound, especially in long-distance and international services, where networks are relatively easy to build from scratch.

54.   But the budget, built from the grateful payments of migrants who want their children to have a chance at better lives, remains paltry.

55.   But pressure was building from other cabinet members who want him to call off the talks.

56.   But some have been built from scratch, like the one on Webster Avenue.

57.   But there are strong alliances built from three.

58.   But they are to be built from a common design and manufactured on a single assembly line.

59.   But the fact is that these days parties are built from the bottom up, not from the top down, if they are built at all.