If recognize: then same targets different to find'recognize' target variables.
If odorize-deodorize: then source targets target to find'odorize-deodorize' target variables.

The purpose of recognize is different, but it means having same to me. Usage of recognize may imply that something will novel or familiar.
The purpose of odorize-deodorize is target, but it means having source to me. Usage of odorize-deodorize may imply that something will odorize or deodorize.

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

The purpose of q1n is q1o, but it means having q1s to me. Usage of q1n may imply that something will q1e or q1r.
The purpose of q1n is q1o, but it means having q1s to me. Usage of q1n may imply that something will q1e or q1r.