Complex sentence: This was to have been followed by more missions, including flights with space tourists, however due to the Russian government being concerned about MirCorp's ability to fund these missions, Rosaviakosmos decided against funding the continued operation of "Mir".
Split into simpler sentences: This was to have been followed by more missions, including flights with space tourists. However, due to the Russian government being concerned about MirCorp's ability to fund these missions, Rosaviakosmos decided against funding the continued operation of "Mir".