Assertion: kilogram's weight | /r/HasProperty | 32 u
Facets:
Source sentences:
text: that has two N atoms with atomic weight 14 u (total weight is 28 u), 21% molecules of oxygen O₂ that has two O atoms with atomic weight 16 u (total weight is 32 u), and
text: that has two O atoms with atomic weight 16 u (total weight is 32 u), and 1% molecules of argon Ar (Ar has one atom with atomic weight 39.8 u).