Ask HN: Our Startup is meeting with Amazon Corporate, what should we expect?

We are a small (10 person) midwest based startup that has been working on applying deep learning to audio processing for the past two years. About a year ago we released our first product and have had great traction with a handful of large companies across the US.

A mutual connection introduced us to some Principals and "Category Leaders" and as a result we built an internal beta test that they have been evaluating for a few months. We just received an invite to come to Seattle and meet with 8 of their team members at the beginning of April.

We haven't worked with a company this size before, but we have gotten approached by Corp Dev from some other category leaders in our vertical and always passed on those deals. We haven't signed any documents or NDA's at this point with Amazon and they don't have anything in their hands that they could reverse engineer.

We are a little worried that they are going to just drill us with technical questions and if we answer them they will just build it on their own. At the same time if we don't answer their questions, we figure they will pass/tell us to go away.

We are worried that if that happens it will kill our momentum in the market and also our opportunity to raise money in the future. People will just say "oh well Amazon passed, forget a deal" etc... Seems lose/lose, but if they want to do a licensing deal or investment/acquisition that would totally blow everything open for us.

So what should we expect?