Assertion: cerium's form | /r/HasProperty | a/b=1.2052
Facets:
Source sentences:
text: 2 O forms monoclinic crystals with crystal parameters a/b=1.2052, c/b=0.9816 and β = 103°41'.
text: O forms monoclinic crystals with crystal parameters a/b=1.2052, c/b=0.9816 and β = 103°41'.