I want to know the answer to the following question:
How many companies were started through Northwestern's Innovations and New Ventures Office?
All the background I'm provided with is that "Through the Innovation and New Ventures Office (INVO), Northwestern researchers disclosed 247 inventions, filed 270 patents applications, received 81 foreign and US patents, started 12 companies, and generated $79.8 million in licensing revenue in 2013.". Is that enough to answer the question?