if in statement in python reverse

Question

So I'm having a bit trouble here..

I'm kinda familiar with this the if x in xyz statement, I also got some good info from this link. So from the answer I understand what it does.. But I need it in reverse..

Like this: So I understand this concept:

text = "This whole sentence is text"
if text in ['whole', 'sentence']
   do something

But i actually need to check if some of the words are in the sentence instead of the upper..

Can I just do it like this:

text = "This whole sentence is text"
if ['whole', 'sentence'] in text
  do something

Or is there a better way to do this?

TL;DR

Keep in mind that the text variable is coming from somewhere else and I can't really change it easily. My google assistant is giving the text variable back from what it heard, and I want to be able to have it do actions without having to say a full literal sentence, so normally it looks like this:

text = event.args['text'].lower()
if text == 'power off':
   assistant.stop_conversation()
   power_off_pi()

So it checks the whole sentence, I just want to be able to let it check for certain words in the sentence.

Thanks in advance!