
Okay, the simplest EXPLANATION
is usually the right one.
The Big Bang Theory Season 10, Episode 24

A simple EXPLANATION,
Breaking Bad Season 2, Episode 3

The only logical EXPLANATION
is that this is a dream.
The Big Bang Theory Season 5, Episode 20

I just gave you a reasonable EXPLANATION.
The Big Bang Theory Season 1, Episode 2

I'm sure there's
an innocent EXPLANATION
The Big Bang Theory Season 11, Episode 17