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

...there is no reasonable EXPLANATION
as to why we're here?
The Big Bang Theory Season 1, Episode 2

I'd like an EXPLANATION,
please.
Breaking Bad Season 2, Episode 5

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

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