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islamic calendar (subgroup of calendar) → IsA → lunar calendar	0.68
lunar calendar (subgroup of calendar) → IsA → islamic calendar	0.52
islamic calendar (subgroup of calendar) → IsA → used using gregorian calendar	0.25
islamic calendar (subgroup of calendar) → ReceivesAction → used by muslims	0.25
islamic calendar (subgroup of calendar) → ReceivesAction → based on the prohibition of intercalation	0.25