Detailed Instructions: In this task, you are given a question and a context passage. You have to answer the question based on the given passage.
Q: What does the I stand for in SOI?, Context: IBM has 12 research laboratories worldwide, bundled into IBM Research. As of 2013[update] the company held the record for most patents generated by a business for 22 consecutive years. Its employees have garnered five Nobel Prizes, six Turing Awards, ten National Medals of Technology and five National Medals of Science. Notable company inventions or developments include the automated teller machine (ATM), the floppy disk, the hard disk drive, the magnetic stripe card, the relational database, the Universal Product Code (UPC), the financial swap, the Fortran programming language, SABRE airline reservation system, dynamic random-access memory (DRAM), copper wiring in semiconductors, the silicon-on-insulator (SOI) semiconductor manufacturing process, and Watson artificial intelligence.
A:
insulator