Complex sentence: Also, as of recently the Tokyo Gov. Ishihara Shintaro has cleaned the area of the Triad mostly on visa violations, however the void has been filled by African (mostly Nigerian) criminal syndicates.
Split into simpler sentences: Also, as of recently, the Tokyo Governor Ishihara Shintaro has cleaned the area of the Triad mostly on visa violations. However, the void has been filled by African (mostly Nigerian) criminal syndicates.