Assertion: lead | /r/HasProperty | problem
Facets:
value: really
type: DEGREE
value: for a long time
type: TEMPORAL
Source sentences:
text: Why lead is a problem, what the District is doing about it and resources to help you.
text: Lead in the air is a problem not only because people may breathe it in, but also because people, particularly children, can swallow lead dust that has settled onto surfaces like soil, dust, and water.
text: JZ: Lead has really been a problem for a long time.