Multi-turn dialogue is erroneously triggered

[katie-b-io]

Multi-turn dialogue is being erroneously triggered due to the naive method of checking follow up utterances (e.g. asking "where is that microwave"? is interpreted as a follow up question, whereas "where is the microwave?" is not). This leads to intents being carried over to the next query image and answers that are not relevant.

A temporary solution is to comment out lines 69 to 85 in natural_language_understanding/main.py.