Assertion: powerful owl | /r/HasProperty | ninox strenua
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Source sentences:
text: The powerful owl (Ninox strenua) is a species of owl native to south-eastern and eastern Australia, the largest owl on that continent.
text: Brushtail possums (Trichosurus spp.) and introduced cats and rats raid the nests for nestlings and eggs, and raptors such as the brown goshawk (Accipiter fasciatus), grey goshawk (Accipiter novaehollandiae), Australian masked owl (Tyto novaehollandiae), and probably powerful owl (Ninox strenua) seize young birds.