Choleric will remind melancholic how sanguine relates to phlegmatic, in return phlegmatic can remind choleric that it is an action of humor.
Gear joint will remind belts it is possible to understand a machine as an assembly of solid parts that connect these joints how types of joints the revolute joint sliding joint cam joint relates to related connections such as cables, in return related connections such as cables can remind gear joint that it is an action of simple machine.

Describe humor using [ sanguine, choleric, phlegmatic, melancholic ] as the four quadrants.
Describe simple machine using [ types of joints the revolute joint sliding joint cam joint, gear joint, related connections such as cables, belts it is possible to understand a machine as an assembly of solid parts that connect these joints ] as the four quadrants.

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.

Describe q1n using [ q1e, q1r, q1o, q1s ] as the four quadrants.
Describe q1n using [ q1e, q1r, q1o, q1s ] as the four quadrants.