Sentence:  An opposition of contrariety is not of purely logical concernment; and a <WSD>disjunctive</WSD> syllogism with characters opposed in contrariety, in fact, consists of as  many pure <WSD>disjunctive</WSD> syllogisms as there are opposing predicates. 
Meaning of the word marked with <WSD> tags:  Of or related to a disjunction.