1*1903c511SMasahiro Yamadaboolean choice
2*1903c511SMasahiro Yamada  1. choice 0 (BOOL_CHOICE0) (NEW)
3*1903c511SMasahiro Yamada> 2. choice 1 (BOOL_CHOICE1) (NEW)
4*1903c511SMasahiro Yamadachoice[1-2?]:
5