text_1: I (investigator) saw him looking in a book on his shelf and asked what the question was.  He said, "Dose of penicillin for streptococcus . . . I always get confused on Bicillin . . ."  I (investigator) said, "The issue is . . . ?"  He said, "What type?
text_2: What form of Bicillin should be used for streptococcal pharyngitis?