remove alias tyto (791) -> masked_owl (9)
remove implication masked_owl (9) -> tytonid (801)
remove implication barn_owl (765) -> masked_owl (9)
remove implication sooty_owl (13) -> masked_owl (9)
remove implication bahamian_barn_owl (0) -> masked_owl (9)
remove implication andaman_masked_owl (0) -> masked_owl (9)
remove implication australian_masked_owl (4) -> masked_owl (9)
remove implication sulawesi_masked_owl (0) -> masked_owl (9)
remove implication african_grass_owl (0) -> masked_owl (9)
remove implication eastern_grass_owl (0) -> masked_owl (9)