Assertion: jump rope | /r/HasProperty | essential
Facets:
value: for a piece of equipment
type: CAUSE
value: for those pesky double-unders
type: TRANSITIVE-OBJECT
Source sentences:
text: The jump rope is such an enigma when it comes to crossfit training, it is essential for those pesky double-unders, and a piece of equipment that has so many variation and different types to choose from.