Assertion: backpack | /r/Causes | problem
Facets:
value: for teenagers
type: TRANSITIVE-OBJECT
value: for children
type: TRANSITIVE-OBJECT
Source sentences:
text: Backpacks that are too heavy or are worn incorrectly can cause problems for children and teenagers.
text: However, backpacks that are too heavy or are worn incorrectly can cause problems for children and teenagers.