Number will remind meaning how sign relates to symbol, in return symbol can remind number that it is an action of writing.
Irritate will remind source how sooth relates to target, in return target can remind irritate that it is an action of sooth-irritate.

Number stimulates ideas about meaning but needs to reference symbol if the topic is writing.
Irritate stimulates ideas about source but needs to reference target if the topic is sooth-irritate.

q1r will remind q1s how q1e relates to q1o, in return q1o can remind q1r that it is an action of q1n.
q1r will remind q1s how q1e relates to q1o, in return q1o can remind q1r that it is an action of q1n.

q1r stimulates ideas about q1s but needs to reference q1o if the topic is q1n.
q1r stimulates ideas about q1s but needs to reference q1o if the topic is q1n.