PowerQuery custom column returns "Active" when [reference column] contains any of the specified word

I have 2 columns

Now for the custom column I'm trying to return "Yes" if [Extract] = "AG" and [Work Status] = *to any of these words {Service Stabilization, Service Delivery}

How do put multiple words as a criteria on [Work Status]

I tried doing 

if [Extract] = "AG" and [Work Status] = { "Service Stabilization", "Service Deliver"} then "Yes" else""

I also tried

If [Extract] ="AG" and [Work Status] = "Service Stabilization" or "Service Delivery" then "Yes" esle ""

both only seems to output "Yes" *ONLY when [Work Status] is Service Stabilization, what might be the correct syntax for it