premise: FC Saturn-1991 Saint Petersburg (Russian: ФК «Сатурн‑1991» Санкт‑Петербург ) was a Russian football team from Saint Petersburg. It played professionally from 1992 to 1995, including 3 seasons (1993–1995) in the second-highest Russian First Division. In 1996 it merged with FC Lokomotiv Saint Petersburg. Before 1995 it was called FC Smena-Saturn Saint Petersburg.
hypothesis: FC Saturn-1991 Saint Petersburg merged with FC Lokomotiv Saint Petersburg
reason: those two teams did in fact merge