create implication muffled_speech (593) -> muffled (4229)
create implication muffled_screaming (287) -> muffled (4229)
create implication muffled_moaning (230) -> muffled (4229)
create implication muffled_sounds (24) -> muffled (4229)
create alias muffled_scream (42) -> muffled_screaming (287)