what video game character weighs less than 84.0 kgs and shares an occupation with john hartigan?
(AND cvg.game_character (AND (le fictional_universe.fictional_character.weight 84.0^^http://www.w3.org/2001/XMLSchema#float) (JOIN (R fictional_universe.character_occupation.characters_with_this_occupation) (JOIN fictional_universe.character_occupation.characters_with_this_occupation m.08701p))))