21.   Soviet and U.S. intelligence archives have yielded new information in recent years about Soviet espionage activities in the United States, but much of it is opaque and ambiguous.

22.   Tests of blood and stomach contents, routinely performed in autopsies, could yield that information.

23.   That debate continues, although Strohmayer said the data had already yielded information about the possible sizes and densities of the stars.

24.   The action yielded little information.

25.   The census currently under way will probably yield more information, but not for a couple of years.

26.   The FBI hopes these facts help yield more information about the terrorists and their support network.

27.   The department hopes the microbe will clean up hot sites and yield information about protecting people from ionizing radiation, said Dr. Ari Patrinos, a senior official.

28.   The gamma rays would carry fingerprints of the gases through which they passed, yielding information about star formation.

29.   The seemingly idle interactive chit-chat can yield important information.

30.   The vaccine experiments are expected to yield crucial information about the feasibility of an HIV vaccine, both for preventing and treating infection.