[All of Jupiter's moons live together.] Callisto is, tiredly, searching for her girlfriend, Europa. And she is going to different moons Callisto goes to Ganymede Callisto: Have you seen my girlfriend? Ganymede: No... Callisto goes to Io Callisto: Have you seen my girlfriend? Io: I didn't... Callisto, now extremely tired, goes to Europa Callisto: Have you seen my girlfriend?... Callisto asks without realizing that she is asking Europa Europa: Europa sighs I'm here...