Assertion: polonium | /r/AtLocation | a particle accelerator
Facets:
value: artificially
type: MANNER
value: usually
type: TEMPORAL
Source sentences:
text: Polonium can be a byproduct of the chemical processing of uranium, but usually it's made artificially in a nuclear reactor or a particle accelerator.
text: It is so rare, however, that all the polonium needed is now made in particle accelerators.
text: Polonium can be a byproduct of the chemical processing of uranium, but usually is made artificially in a nuclear reactor or a particle accelerator.
text: Polonium can be a byproduct of the chemical processing of uranium, but usually it's made artificially in a nuclear reactor or a particle accelerator.
text: Polonium can be a byproduct of the chemical processing of uranium, but usually it's made artificially in a nuclear reactor or a particle accelerator.