context: Air is located at tree. Balloon is located at air. Mountain is located at canada. Sound cannot have a location of day care center. Sound cannot have a location of litter. Tree has a leave. Air cannot have a location of litter. Sound cannot have a location of air. Key cannot have a location of mail room. Sound is a means of accomplishing annoy someone. Rock is located at mail room. Key cannot have a location of canada. Tree is located at mountain.
text: Tree is located at mountain.