Complex sentence: Cargo delivered: 450 tonne per single "Interplanetary Spaceship"; full reuse; and are all assumptions about a single mission once thousands of launches and hundreds of flight to Mars are a realistic prospect.
Split into simpler sentences: Cargo delivered: 450 tonne per single "Interplanetary Spaceship"; and full reuse. All assumptions are about a single mission once thousands of launches and hundreds of flights to Mars are a realistic prospect.