How to Select Single Part of Text

Hopefully very simple question but if you have a text like this: ‘:randomword!randomsomething@askingquestion.stuff.idk SOMETHING #theeggoplant :check 1 2 3’

How would you select just the ‘check 1 2 3’ ?

It really depend on what changes in time with the text.
If there is always two times “:”, then you can use Python to split the text

texte = ‘:randomword!randomsomething@askingquestion.stuff.idk SOMETHING #theeggoplant :check 1 2 3’
textSplit = texte.split(‘:’)
goal = textSplit[2]