expression
INSTANCE expression#1;
is_variable = true;
END_INSTANCE;
INSTANCE expression#2;
is_variable = true;
END_INSTANCE;
INSTANCE expression#3;
is_variable = true;
END_INSTANCE;
INSTANCE expression#4;
is_variable = false;
END_INSTANCE;
INSTANCE expression#5;
is_variable = false;
END_INSTANCE;
INSTANCE expression#6;
is_variable = true;
END_INSTANCE;
INSTANCE expression#7;
is_variable = true;
END_INSTANCE;
INSTANCE expression#8;
is_variable = true;
END_INSTANCE;
INSTANCE expression#9;
description = ?description;
END_INSTANCE;
INSTANCE expression#10;
is_variable = true;
END_INSTANCE;
INSTANCE expression#11;
is_variable = false;
END_INSTANCE;
INSTANCE expression#12;
is_variable = false;
END_INSTANCE;
INSTANCE expression#13;
is_variable = true;
END_INSTANCE;