table: [['prr class', 'builders model', 'build date', 'total produced', 'wheel arrangement', 'service', 'power output'], ['gs4', '44 ton', '1948 - 1950', '46', 'b - b', 'switcher', ''], ['gf25', 'u25b', '1965', '59', 'b - b', 'freight', ''], ['gf25a', 'u25c', '1965', '20', 'c - c', 'freight', ''], ['gf28a', 'u28c', '1966', '15', 'c - c', 'freight', ''], ['gf30a', 'u30c', '1967', '5', 'c - c', 'freight', '']]
ref: the Gf25a Prr Class recorded 15 more product than that of the Gf30a Prr Class
template: the [ENT] [ENT] recorded [ENT] more product than that of the [ENT] [ENT]