Assertion: fire extinguisher's agent | /r/HasProperty | effective
Facets:
value: for extinguishing a fire
type: PURPOSE
value: no longer
type: TEMPORAL
value: unfortunately
type: DEGREE
Source sentences:
text: Unfortunately, no one agent is effective in fighting all types (classes) of fires.
text: Many can only be used once and even if they are not used, the agent may expire and no longer be effective.
text: To be effective, the extinguishing agent must penetrate the burning material.
text: The agent is effective for extinguishing a fire because the clean agent chemically reacts with the ignition, fuel and oxygen in the fire to disrupt the chain reaction between them.