>> Alexa, what was that alarm for? For a long time I've been thinking a key to these thing is maintaining enough context to identify pronouns. For example, in

>> Alexa, what was that alarm for? For a long time I've been thinking a key to these thing is maintaining enough context to identify pronouns. For example, in the above question the key word is "that" or "that alarm". Being able to get a reference to the correct alarm should make it easy to answer. Not being able to do it certainly makes it impossible to answer.