original: In addition there are 10 ground-level stations and four above ground.
simplifications: There are 10 ground-level stations and four above ground. Plus to that there are 10 ground stations and four above ground. There are 10 ground-level stations and four above. There are 10 ground-level stations. Four are above ground. There are also 10 ground-level stations and four above ground. Also there are 10 ground-level stations. There are four above ground. There are also 10 ground-level stations and four above ground stations. Also, there are 10 ground-level stations and four above ground. There are 4 stations above ground and 10 ground-level stations. There are also 10 ground-level stations and four above ground.