Assertion: gerbil's tail | /r/CapableOf | add another 3 to 6 inches
Facets:
value: to their length
type: OTHER
Source sentences:
text: Chinchillas are typically 9 to 15 inches (23 to 38 centimeters) long, but the tail can add another 3 to 6 inches (8 to 15 cm) to their length.