Assertion: protactinium | /r/HasProperty | separated for scientific experiments
Facets:
value: from uranium ores
type: TRANSITIVE-OBJECT
value: before the advent of nuclear reactors
type: TEMPORAL
Source sentences:
text: Before the advent of nuclear reactors, protactinium was separated for scientific experiments from uranium ores.
text: Before the advent of nuclear reactors, protactinium was separated for scientific experiments from uranium ores.
text: Before the advent of nuclear reactors, protactinium was separated for scientific experiments from uranium ores.
text: Before the advent of nuclear reactors, protactinium was separated for scientific experiments from uranium ores.