property expressing an aspect of the same relation that completes this property (e.g. start date and end date). The two can be seen as opposites. For inverses, use "inverse property" (P1696). For relations among items, see "opposite of" (P461).
property expressing opposing information (e.g. start date and end date). For inverses, use P1696. For properties that negate each other, use P11317. For relations among items, use P461.