The SOLE clue:
"It's not what it looks like."
The Big Bang Theory Season 5, Episode 1
Now, I am not saying that I should be
the SOLE decider of who you mate with.
The Big Bang Theory Season 1, Episode 15
I'm the SOLE author
on a paper being published
The Big Bang Theory Season 5, Episode 12
my SOLE purpose in life
Game of Thrones Season 7, Episode 3
He’s going to sue me
for SOLE custody of my daughter,
Money Heist Season 1, Episode 8