A black and white dog is climbing stairs in the snow .
It is unlikely that the dog climbs the stairs in the snow to get to the front door of the house .
It is probably the case that the dog climbs the stairs in the snow to get to the front door of the house .
It is unlikely that the dog climbs the stairs in the snow to get to the front door of the house .
The dog climbs the stairs in the snow to get to the front door of the house .