Assertion: viper's head | /r/HasProperty | poised in the center
Facets:
Source sentences:
text: Their characteristic pose, a double coil with a figure of eight, with the head poised in the center, permits them to lash out like a released spring.
text: Its characteristic pose, a double coil with a figure of eight, with the head poised in the center, permits it to lash out like a released spring.