create implication muffled_speech (744) -> muffled (4812)
create implication muffled_screaming (337) -> muffled (4812)
create implication muffled_moaning (421) -> muffled (4812)
create implication muffled_sounds (44) -> muffled (4812)
create alias muffled_scream (62) -> muffled_screaming (337)