Assertion: septic tank | /r/HasProperty | essential ingredient
Facets:
value: to the success of these systems
type: PURPOSE
Source sentences:
text: Because the septic tank is an essential ingredient to the success of these systems, a new generation of structurally-sound, watertight septic tanks is evolving.
text: Because the septic tank is an essential ingredient to the success of these systems, a new generation of structurally-sound, watertight septic tanks is evolving.