Speech to text => Custom QnA (old QnAbot) => text to Speech Is this possible?

Using Cognitive Services | Language Studio (Preview) and | Speech , is it possible to "stack" projects?

Namely, can one create (1) a speech-to-text project; run that created text thru a (2) custom question answering project; and then, run that output thru a (3) text-to-speech project for the user to hear. Or is a subset possible (e.g. 1+2 or 2+3)?

In short, create an app where the user asks a question/speaks and the app verbally answers back.

Sure I'm not the first to ask, but I've been researching and haven't found a full answer (this field is changing fast!).