Construct a five-membered saturated ring containing two adjacent nitrogens (pyrazolidine). There are two substituents on the pyrazolidine attached two carbons adjacent to the nitrogens:  
   - one carries a benzene ring
   - the other bonds to a five-membered heteroring through a double bond (this double bond is not E/Z specification).

Five-membered heteroring details:

- The ring is composed of C1-S2-C3=C4-C5, then back to C1.
- The connection from the pyrazolidine is at C1.
- C3 and C4 form a double bond.
- C5 doubly-bonds to an oxygen.