A sensory common feature is a shared perceptible configuration, such as the visible bodily form of two objects. Such a feature can be sensory when both source and target admit that perceptible structure.
If one term denotes an intellectual meaning, its common property with the other cannot be a directly sensed feature belonging to it as that meaning. Their likeness therefore has to be established conceptually.
Two sensory terms make a sensory feature possible, not compulsory. Their shared connection may instead involve sequence, disclosure, cause, or some other conceptual relation, even while each scene is visible.