
...but there is a reasonable EXPLANATION.
While I slept in my sleeper car...
The Big Bang Theory Season 8, Episode 1

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

It is not the only
logical EXPLANATION.
The Big Bang Theory Season 5, Episode 20

Raquel was trying to find
an EXPLANATION to that,
Money Heist Season 1, Episode 11