Assertion: plutonium | /r/HasProperty | solid material
Facets:
Source sentences:
text: Plutonium is a solid material that is fashioned into rods for use in nuclear reactors and into ceramic ?
text: It should be noted that these materials are gases that disperse naturally into the air if released, whereas plutonium is a solid that is quite difficult to disperse even intentionally.
text: It rapidly permeates the room air, whereas plutonium, being a solid material, would be largely immobile.