Joking aside, the Beatles may almost be like xkcd. In that they just might have a song for most if not all of the most basic human interactions and emotions.
Here, "Hello, Goodbye".
You say, "Yes", I say, "No"
You say, "Stop" and I say, "Go, go, go"
Oh no
You say, "Goodbye" and I say, "Hello, hello, hello"
I don't know why you say, "Goodbye", I say, "Hello, hello, hello"
I don't know why you say, "Goodbye", I say, "Hello"