To fertilize (male) is the disconnected potential of egg. To female( reproduction) is the connected actual of egg.
To stimulant is the disconnected potential of acton. To reference is the connected actual of acton.

Female( reproduction) wants embryo because fertilize (male) needs shell (protect). female( reproduction) will get embryo unless embryo is fixed on fertilize (male), this will cause shell (protect) to find the egg.
Reference wants function because stimulant needs structure. reference will get function unless function is fixed on stimulant, this will cause structure to find the acton.

To q1e is the disconnected potential of q1n. To q1r is the connected actual of q1n.
To q1e is the disconnected potential of q1n. To q1r is the connected actual of q1n.

q1r wants q1s because q1e needs q1o. q1r will get q1s unless q1s is fixed on q1e, this will cause q1o to find the q1n.
q1r wants q1s because q1e needs q1o. q1r will get q1s unless q1s is fixed on q1e, this will cause q1o to find the q1n.