Now, how would the UI go about specifying which previously defined list you want to refer to? Sometimes you'll want to pick the most recent, sometimes the one most closely matching the definition, sometimes the one matching the "alarm clock" format most, sometimes you'll want to offer the user a choice among all objects similar enough to the description (What about if the object was built iteratively, do you offer intermediary objects as possible choices?), sometimes you'll want to ask a short question to restrict possible choices, if there's seems to be a clear criterion that probably improves understanding fast enough more relative to the time it takes to ask (this can depend on the user/environment/situation to choose between fast/precise answer).
To me the difficulty is that the choice of strategy can be built on the fly depending on context by humans, usually without building an understanding of all possible strategies but instead by just magically guessing a strategies which seems to fit well enough. This means being able to learn strategies based on previous experiences and building an evolving understanding of contexts.
Now this is probably not necessary to build a functioning interactor, but this is a reasonable description of normal human interaction, and the capacity for systems to adapt to contexts without much more outside help than humans do is going to be a good way to rate them.