Assertion: alligator's head | /r/CapableOf | slap by male
Facets:
value: to display aggression
type: PURPOSE
Source sentences:
text: Other forms of communication during mating season includes non-vocal gestures such as lifting the head out of the water to show good intentions, head slapping by males to display aggression towards intruders, and sub audible sounds such as vibrations, bubbles, and ripples that can be seen in the water.