Assertion: guanine | /r/HasAspect | two tautomeric forms
Facets:
Source sentences:
text: Guanine has two tautomeric forms, the major keto form (see figures) and rare enol form.
text: Guanine has two tautomeric forms, the major keto form and rare enol form.
text: Guanine has two tautomeric forms, the major keto form and rare enol form.