Assertion: outline | /r/HasProperty | invaluable
Facets:
Source sentences:
text: Creating D&D adventures is no different from other writing projects in that aspect: an outline is invaluable.
text: Outlines can be an invaluable tool when writing a paper or other document
text: We believe that these outlines are valuable resources, but they should by no means be used in place of a student's own work.