The lion chases the mouse. The mouse needs the lion. The tiger needs the mouse. If something visits the tiger and it visits the mouse then the mouse is kind. If the lion is not nice then the lion does not visit the mouse. If the tiger is not kind then the tiger visits the lion. If the mouse needs the lion and the mouse does not visit the lion then the lion does not chase the tiger. If the tiger is blue then the tiger needs the lion. If something does not need the tiger and the tiger does not need the mouse then the mouse needs the lion.
The lion needs the tiger.