The lion chases the mouse. The lion is rough. The lion is young. The lion sees the mouse. The mouse is rough. The mouse needs the lion. The mouse sees the lion. If someone chases the lion then they chase the mouse. If someone chases the mouse then the mouse chases the lion. If the mouse is red then the mouse sees the lion. If someone needs the mouse then they are red. If the lion sees the mouse and the mouse is green then the mouse is nice. If someone needs the mouse and the mouse needs the lion then the lion chases the mouse. If someone chases the lion and the lion does not need the mouse then they see the lion. If someone needs the mouse then the mouse sees the lion.
The lion does not chase the lion.