Assertion: viagra | /r/HasProperty | needed for ed
Facets:
value: on a daily basis for pah
type: TEMPORAL
Source sentences:
text: It is taken when needed for ED and on a daily basis for PAH.
text: It is taken when needed for ED and on a daily basis for PAH.
text: It is taken when needed for ED and on a daily basis for PAH.
text: It is taken when needed for ED and on a daily basis for PAH.