Not only that, but even if you were to get 100% word accuracy, context is still important for choosing between multiple possible meanings.
As an example, I was being directed by Google Maps to a new place, and I asked it "What is the ETA?" It responded, "From Wikipedia, the estimated time of arrival or ETA is the time when a ship, vehicle, aircraft, cargo or emergency service is expected to arrive at a certain place." It was a completely valid answer to the question, but not one that any human would give.
Humans make those mistakes too. Once, while talking to somebody about money, I asked "do you know what inflation is?", meaning what the rate is,to help make a decision, but they were offended and replied that yes, of course they knew what the concept meant.
Having a "the" in there like you did should remove ambiguity though. I guess Google Maps defers to Wikipedia when it doesn't know what a term means.
As an example, I was being directed by Google Maps to a new place, and I asked it "What is the ETA?" It responded, "From Wikipedia, the estimated time of arrival or ETA is the time when a ship, vehicle, aircraft, cargo or emergency service is expected to arrive at a certain place." It was a completely valid answer to the question, but not one that any human would give.