from a LACK of rules and competition.
The Big Bang Theory Season 1, Episode 6
He shows an absolute LACK of empathy.
Money Heist Season 1, Episode 8
did not LACK refreshment.
Game of Thrones Season 1, Episode 7
In Leonard's defense,
it wasn't for LACK of trying.
The Big Bang Theory Season 2, Episode 10
On the other hand,
we might LACK a certain maturity.
The Big Bang Theory Season 9, Episode 16