context: Plankton cannot have a location of professor. Gong is located at stadium. Plankton cannot have a location of water. Plankton cannot have a location of coven. Mud is located at riverbed. Water is located at stream. Shelve is located at stadium. Stream is located at mud. Mud is defined as mixture of water and soil. Canoe is located at water. Gong cannot have a location of riverbed.
text: Water cannot have a location of stream.