"We can now break down a query to understand the semantics of each piece," Google said in a blog post. "So now we can get at the intent behind the entire question. That lets us traverse the Knowledge Graph much more reliably to find the right facts and compose a useful answer. And we can build on this base to answer harder questions," it said.
In its blog post, Google put any initial failures down to the launch jitters and said it will improve over time. "We're still growing and learning, which means we make mistakes. But know that we're working hard on understanding your questions better so that we can find the answer to whatever you're looking for," it said.