See Stella the original talking dog communicate two separate thoughts in a single utterance with her sound buttons:
Stella's human, speech-language pathologist Christina Hunger, had this to say:
"I think it’s amazing that Stella communicated two different concepts with a single utterance. She commented that she was finished outside AND shared that she wanted to eat. Instead of just marching in to say “eat,” she took the time to comment that she was all done outside before requesting her breakfast. I just can’t stress it enough: dogs have so much more to say than only requesting what they want."