A group of people wearing snowshoes , and dressed for winter hiking , is standing in front of a building that looks like it 's made of blocks of ice .
It is probable that winter clad people are standing in front of an igloo .
It is probable that winter clad people are standing in front of an igloo .
It is impossible that winter clad people are standing in front of an igloo .
Winter clad people are standing in front of an igloo .