If odorize-deodorize: then source targets target to find'odorize-deodorize' target variables.
If buy-sell: then source targets target to find'buy-sell' target variables.

Describe odorize-deodorize using [ odorize, deodorize, target, source ] as the four quadrants.
Describe buy-sell using [ buy, sell, target, source ] as the four quadrants.

If q1n: then q1s targets q1o to find 'q1n' target variables.
If q1n: then q1s targets q1o to find 'q1n' target variables.

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