context: Water is located at town. Seaweed cannot have a location of in space. Seaweed cannot have a location of math textbook. Two horse cannot have a location of mountainous region. Town is located at valley. Mountain is located at mountainous region. Water is a means of accomplishing drink. Seaweed cannot have a location of water. Water cannot have a location of math textbook. Two horse is located at leipzig. Seaweed is a plant. Valley is located at mountainous region. Gravity is located at leipzig.
text: Town cannot have a location of valley.