My bad--there might be a flaw here. This would work for queries such as "bitcoin is asdfasdfas usd" which we probably wouldn't want. An alternative approach (which is not ideal, but it works) would be to get the remainder from the URL, and use that to check if it's one of the currencies. Take a look at the [Hacker News IA](https://github.com/duckduckgo/zeroclickinfo-spice/blob/master/share/spice/hacker_news/hacker_news.js#L8).