Assertion: pyrimidine | /r/HasProperty | simple aromatic ring
Facets:
Source sentences:
text: Pyrimidine is a simple aromatic ring composed of two nitrogen atoms and four carbon atoms, with hydrogen atoms attached to each carbon.
text: Pyrimidines are simple aromatic compounds composed of carbon and nitrogen atoms in a six-membered ring.
text: A pyrimidine is a simple aromatic ring composed of six atoms, two nitrogen atoms and four carbon atoms.
text: Pyrimidines are simple aromatic compounds composed of carbon and nitrogen atoms in a six-membered ring.