Assertion: trampoline's pole | /r/MadeOf | steel
Facets:
value: to give the strength
type: PURPOSE
value: often
type: TEMPORAL
Source sentences:
text: If you’re buying the model with a certain type of net or enclosure, your kid will be exposed to poles that are often made of hard material such as steel to give the strength to a net which can then center of the kid if they are bounced onto it.