Assertion: tritium | /r/HasProperty | expensive
Facets:
value: relatively
type: DEGREE
Source sentences:
text: Tritium is a natural isotope of hydrogen, but because it has a short half-life of 12.32 years, it is hard to find, store, produce, and is expensive.
text: Tritium is relatively expensive to produce because each triton produced requires production of at least one free neutron which is used to bombard a feedstock material (lithium-6, deuterium, or helium-3).