Complex sentence: The groin is innervated by the obturator nerve, with two exceptions: the pectineus muscle is innervated by the femoral nerve, and the hamstring portion of adductor magnus is innervated by the tibial nerve.
Split into simpler sentences: The groin is innervated by the obturator nerve, with two exceptions. The pectineus muscle is innervated by the femoral nerve, and the hamstring portion of adductor magnus is innervated by tibial nerve.