Assertion: berkelium | /r/HasProperty | created in microgram batches
Facets:
value: as far as i know
type: OTHER
Source sentences:
text: As far as I know, Berkelium has only been created in microgram batches about twice under extremely fragile conditions for fractions of a second, so I think one gram of it would cost a very very very large amount of money, say, the price of Germany?