Assertion: polonium's isotope | /r/HasProperty | prepared in small quantities
Facets:
Source sentences:
text: Although these two isotopes can be prepared in small quantities in a particle accelerator, they are very expensive to produce.
text: Although these two isotopes can be prepared in small quantities in a particle accelerator, they are very expensive to produce.
text: Although these two isotopes can be prepared in small quantities in a particle accelerator, they are very expensive to produce.
text: Although these two isotopes can be prepared in small quantities in a particle accelerator, they are very expensive to produce.