Parse or Substring

[Cherub7210]

I am trying to get the wave part of the given strings and i am unable to identify the correct parse for Reg_Ex tool or if you do know any formula i would appreciate it 

Deployment (aka Live) Wave 2 - output Wave 2 
Deployment (aka Live) Wave 3
Deployment (aka Live) wave 1
Implement Goal item wave 1
Implement Goal item Wave 2
Goal Item Setting Wave 1

Appreciate the assistance 

[binuacs · Accepted solution]

@Cherub7210 something like below?

[Cherub7210]

@binuacs this is very helpful thank you :)