Question: Are Jirair Hovnanian and Hrayr Shahinian both home builders?

Context paragraphs:
Parade of Homes: The Parade of Homes is a showcase of new homes held annually in several regions throughout the United States.  The nation's first home tour organization was established in Minnesota in 1948.  In 2011, the Salt Lake Home Builders Association hosted the "UP" House from the Disney/Pixar Movie.  Alternatively known as the Tour of Homes in some locales, it is often presented by the local Home Builders Association (HBA) or Building Industry Association (BIA).  The Parade of Homes typically showcases high-end designer homes, both new construction and remodeled homes.  Showcases can include single-family homes, condominia, duplexes, and town homes.  Some locations allow tours for free; other locations require an admission ticket to view the homes.  Some locations offer awards for the best homes.

Expressmodular.com: ExpressModular.com, in Martinsburg, WV, is the largest modular home builder in the United States.  Express Modular is the first company to offer modular construction nationwide through a series of local home manufacturers.  The company is currently licensed in 42 states and able to serve all states through its manufacturing network.  Express Modular has the largest number of modular home designs available among home builders serving the modular home space.  The company has been featured on 2 episodes of Breakneck Builds, a program on the DIY Network featuring fast paced home building and remodeling projects.

International Builders' Show: The International Builders' Show (IBS) is organized by the National Association of Home Builders (NAHB) and is the largest light construction building industry tradeshow in the United States.  It is the only event of its kind, focusing specifically on the needs, concerns, and opportunities that face builders.  In 1944, the NAHB held its first annual convention and exposition, later becoming the International Builders' Show in 1998.

EarthCraft House: EarthCraft House is one of five programs within the EarthCraft suite of regional green building standards.  The EarthCraft Program was created in 1999 as a partnership between the Greater Atlanta Home Builders Association and Southface Energy Institute and teaches builders the latest methods of resource and energy-efficient construction.

Green building in Canada: Canada has implemented the "R-2000" in 1982 to promote better than building code construction to increase energy efficiency and promote sustainability.  An optional feature of the R-2000 home program is the EnerGuide rating service.  This service is available across Canada, allows home builders and home buyers to measure and rate the performance of their homes, and confirm that those specifications have been met.  Some Canadian provinces are considering mandatory use of the service for all new homes.

Jirair Hovnanian: Jirair S. Hovnanian (June 9, 1927 – August 14, 2007) was an Armenian Iraqi-American home builder based in New Jersey.  Hovnanian's business developed and built over 6,000 houses throughout South Jersey.

Hrayr Shahinian: Hrayr Shahinian, M.D., F.A.C.S. is an American skull base surgeon and founder of the Skull Base Institute (SBI).  He was Board Certified by the American Board of Surgery and was licensed to practice in California since 1996.  On August 11, 2016 the Medical Board of California, Department of Consumer Affairs, State of California adopted the decision to revoke the Physician and Surgeon’s Certificate issued to Hrayr Karnig Shahinian, M.D.  The order came into effect on September 9, 2016.

Home Builders Association of Northern California: The Home Builders Association of Northern California is a professional, non-profit association committed to promoting housing for people of all income levels and the production of quality homes.  HBANC's membership comprises about 1,000 home builders, trade contractors, suppliers and industry professionals in the Bay Area.

Kevork Hovnanian: Kevork S. Hovnanian (1923 – September 24, 2009) was an Armenian-American businessman and home builder, who founded Hovnanian Enterprises in 1959.  He remained the president and chief executive officer of Hovnanian Enterprises until his retirement in 1997.  Despite some recent financial difficulties due to the 2008-2009 recession and financial crisis, Hovnanian Enterprises remains the sixth largest American homebuilder and the largest homebuilder in New Jersey, as of September 2009.

MDC Holdings: M.D.C. Holdings, Inc. (), founded by Larry Mizel as Mizel Development Corporation in 1972, whose subsidiaries build homes under the name "Richmond American Homes," is one of the top fifteen home builders in the United States.  The Company also provides mortgage financing, primarily for MDC's home buyers, through its wholly owned subsidiary HomeAmerican Mortgage Corporation.  MDC, a Fortune 500 Company, is a major regional home builder with a significant presence in Colorado, Florida, Las Vegas, Maryland, Northern California, Northern Virginia, Phoenix, Salt Lake City, Seattle, Southern California and Tucson.  MDC is based in Denver, CO.

Supporting paragraphs: Jirair Hovnanian Hrayr Shahinian
Answer: no