(<=> (Diagnostic-Action ?A ?B) (And (Exists (?C) (And (Evaluated-By ?A ?C) (Inverse-Of-Clinical-Relation ?A ?C) (Health-Condition ?A) (*Healthcare-Operator ?C) (Performs ?C ?B))) (Act ?B) (Clinical-Actor ?A ?B) (Health-Condition ?A) (Activity ?B)))