Assertion: river | /r/HasAspect | dam
Facets:
value: sometimes
type: TEMPORAL
Source sentences:
text: Rivers sometimes have dams to hold the water for people to drink, or to make electricity.
text: For this reason, most rivers in the world have man-made features such as dams, weirs, levees, canals, or other sluice mechanisms.
text: Rivers sometimes have dams to hold the water for people to drink, or to make electricity.