Question: After graduatng college,  André Dreiding spent two years as a research assisant for a healthcare company headquartered in what city?
Sentence (from "Innovaccer"): Innovaccer Inc. is a Silicon Valley-based healthcare company, founded by Abhinav Shashank, Kanav Hasija, and Sandeep Gupta that provides physician practices, hospitals, health systems, and other healthcare providers with population health management and Pay-for-performance solutions.
Relevant evidence: No