Assertion: urea's structure | /r/HasAspect | linear backbone
Facets:
Source sentences:
text: The resulting structure has a linear backbone, but it has short, uniform branches that, like the longer branches of LDPE, prevent the polymer chains from packing closely together.
text: The resultant structure has a linear backbone, but it has short, uniform branches that, like the longer branches of LDPE, prevent the polymer chains from packing closely together.