Assertion: urine's phosphorus | /r/HasProperty | exposed to oxygen
Facets:
Source sentences:
text: White phosphorus emits a faint glow when exposed to oxygen – hence the name, taken from Greek mythology, Φωσφόρος meaning "light-bearer" (Latin Lucifer), referring to the "Morning Star", the planet Venus.
text: While Brand had discovered phosphorus (specifically white phosphorus, which is highly flammable and self-igniting when exposed to oxygen), he didn't know this.