The least precisely worded sentences are:
These sentences merely report a problem without specifying any details.
The most precisely worded sentence in the first situation is:
Unlike sentences 1, 2 and 3, sentences 4 and 5 indicate the type of problem. 'Buzz' describes the nature of the problem more specifically than 'a funny sound'.
The most precisely worded sentence in the Situation 2 is:
The words conflict (4) and shooting (5) provide the most specific information about the nature of the threat, but conflict is less specific than shooting. Although The circumstances are life-threatening (6) provides information about the possible repercussions of the conflict, so does (5), with its most specific reference to the nature of the threat.