31.   Relations with Ms. Bhutto may be another thorny problem.

32.   She advises him on a thorny problem, and he finds her so wise that he proposes.

33.   Still, the specificity of the details recorded is bound to raise thorny problems.

34.   Take his treatment of the thorny problem of separating a black-capped chickadee from a Carolina chickadee.

35.   That presents another thorny problem.

36.   The attack in Saudi Arabia continues to create thorny problems for the Clinton administration.

37.   The consortium researchers acknowledge that they still have thorny technical problems to solve.

38.   The centerpiece of the contract, the religious equality amendment, would pose a number of thorny legal problems.

39.   The Department of Energy is betting that IBM, Silicon Graphics and Intel will be able to solve thorny problems in scaling machines from hundreds to thousands of microprocessors.

40.   The data also reveal a thorny problem for politicians eager to move people on welfare into work.