Complex sentence: The main line of Sōsuishi-ryū is practiced at the Shadanhōjin Sekiryūkan (社団法人隻流館), the hombu (本部) dōjō (home dōjō) of the ryu, located in Fukuoka, Japan.
Split into simpler sentences: The main line of Sōsuishi-ryū is practiced at the Shadanhōjin Sekiryūkan (社団法人隻流館). This is the hombu (本部) dōjō (home dōjō) of the ryu and it is located in Fukuoka, Japan.