If barrier: then blocking targets section to find'barrier' target variables.
If acton: then function targets structure to find'acton' target variables.

The purpose of barrier is section, but it means having blocking to me. Usage of barrier may imply that something will wall or door.
The purpose of acton is structure, but it means having function to me. Usage of acton may imply that something will stimulant or reference.

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.