Assertion: waste receptacle | /r/HasProperty | needed
Facets:
Source sentences:
text: To decide where a waste receptacle is needed, some simple on-site observations are necessary.
text: After doing these initial observations, it should be fairly clear where and how many waste receptacles are needed.
text: The number of waste receptacles that are needed depends on the number of people who use an area, on the amount of litter generated by different land uses, and on the efficiency of the maintenance and sanitation program.