remove implication mutual_footjob (120) -> mutual_masturbation (2385)
remove implication mutual_handjob (824) -> mutual_masturbation (2385)
create implication mutual_footjob (120) -> mutual_stimulation (0)
create implication mutual_handjob (824) -> mutual_stimulation (0)
create implication mutual_fingering (197) -> mutual_stimulation (0)