identify starting activities use capital letters, comma without space

FF+3 SF+23 F FF+6 E 20 13 FS+4 SS+4 G A 7 SF+12, B 5 D 9 SS+5 FF+4 1 FS+12 17 FF+3 SF+23 F FF+6 E 20 13 FS+4 SS+4 G A 7 SF+12, B 5 D 9 SS+5 FF+4 1 FS+12 17