what are the names of the fiesch cable cars?
fiesch- -alp 1+2, fiesch- -alp 3+4, fiescheralp-eggishorn, heimat, talegga, flesch, trainer 1, trainer 2, laxeralp 1, laxeralp 2
which can hold the fewest customers?
fiesch- -alp 3+4