Assertion: oxalic acid's pk | /r/CapableOf | vary in the literature
Facets:
value: from 3.81
type: TEMPORAL
value: from 1.25
type: TEMPORAL
Source sentences:
text: Oxalic acid's pK a values vary in the literature from 1.25-1.46 and 3.81-4.40.    
text: Oxalic acid's pK a values vary in the literature from 1.25-1.46 and 3.81-4.40.