Assertion: mustard gas's effect | /r/HasProperty | ill
Facets:
Source sentences:
text: Mustard gas is a persistent weapon that remains on the ground for days and weeks, and it continues to cause ill effects
text: Mustard agent is a persistent weapon that remains on the ground for weeks, and it continues to cause ill effects.
text: Mustard agent is a persistent weapon that remains on the ground for weeks, and it continues to cause ill effects.
text: Mustard agent is a persistent weapon that remains on the ground for days and weeks, and it continues to cause ill effects.