41.   Compiled by Rose Valland, a scrupulous wartime museum archivist, they may hold clues to unraveling the mysteries of wartime ownership.

42.   Detectives hope the items may hold a clue in the hunt for the killer.

43.   Rumsfeld noted there are numerous caves that hold possible clues about the terrorist network.

44.   The answers will likely hold clues for treating many diseases.

45.   That might hold useful clues for medicine.

46.   The contents of the recording could hold vital clues as to why the plane dropped from the sky halfway during a routine flight from Jakarta to Singapore.

47.   The submerged warplanes are believed to hold clues to the fate of at least three Americans, she said.

48.   Virtually all the fir seedlings die within four to six weeks, but researchers hope the few that survive might hold clues to producing resistant plants.

49.   They believe the cockpit will hold important clues on the cause of the crash.