Assertion: penguin's flipper | /r/HasProperty | powerful
Facets:
Source sentences:
text: Royal penguins use their powerful flippers and streamlined bodies, aided by their webbed feet to soar through the water and are able to reach speeds of nearly 20mph.
text: Royal penguins use their powerful flippers and streamlined bodies, aided by their webbed feet to soar through the water and are able to reach speeds of nearly 20mph.