remove implication mutual_footjob (111) -> mutual_masturbation (2172)
remove implication mutual_handjob (402) -> mutual_masturbation (2172)
create implication mutual_footjob (111) -> mutual_stimulation (0)
create implication mutual_handjob (402) -> mutual_stimulation (0)
create implication mutual_fingering (191) -> mutual_stimulation (0)