premise: A group of boaters in a village fish in collection of meat to feast a large group festival which will take place in the middle of these beautiful green mountains, along side of this lake. hypothesis: The boaters are walking along a flat plain with nothing but flat land in site.
contradiction: The act of "fish in" and walking can't be done simultaneously. Mountains are not a flat plain. There can't be, nothing but flat land in site, if there is a lake.