Complex sentence: Smedley conducted a sexual relationship with Richard Sorge, a Soviet spymaster, while in Shanghai, and probably with Ozaki Hotsumi, a correspondent of Asahi Shinbun.
Split into simpler sentences: Smedley conducted a relationship with Richard Sorge, a Soviet spymaster, while in Shanghai. She also had ties with Ozaki Hotsumi, a correspondent of Asahi Shinbun.