Question: The president that inaugurated the Shirdi Airport previously held what position from 2015 to 2017?

full_context: Document 1: Ram Nath Kovind: Ram Nath Kovind (born 1 October 1945) is an Indian politician who is the President of India, in office since 2017. Previously he served as Governor of Bihar from 2015 to 2017 and was a Member of Parliament, Rajya Sabha from 1994 to 2006. He was a leader of the Bharatiya Janata Party (BJP). Kovind was nominated as a presidential candidate by the ruling NDA coalition and won the 2017 presidential election, becoming the second Dalit to be elected to the post of President. He assumed office on 25 July 2017.
Document 2: Rajnath Singh: Rajnath Ram Badan Singh (born 10 July 1951) is an Indian politician belonging to the Bharatiya Janata Party (BJP) who currently serves as the Home Minister. He previously served as the Chief Minister of Uttar Pradesh and as a Cabinet Minister in the Vajpayee Government. He has also served as the President of the BJP twice, 2005 to 2009 and 2013 to 2014. He began his career as a physics lecturer and used his long-term association with the Rashtriya Swayamsevak Sangh (RSS) to become involved with the Janata Party.
Document 3: Shirdi Airport: Shirdi Airport (IATA: SAG, ICAO: VASD) is located at Kakadi village, about 14 km South-west of the town of Shirdi in Maharashtra, India. The airport, spread over 400 hectares, is owned by the Maharashtra Airport Development Company (MADC) and was inaugurated by President Ram Nath Kovind on 1 October 2017. Communication Navigation Surveillance (CNS) and Air Traffic Control (ATC) at the airport will be managed by the Airports Authority of India (AAI).
Document 4: Narendra Modi: Narendra Damodardas Modi (] , born 17 September 1950) is an Indian politician who is the 14th and current Prime Minister of India, in office since May 2014. He was the Chief Minister of Gujarat from 2001 to 2014, and is the Member of Parliament for Varanasi. Modi, a member of the Bharatiya Janata Party (BJP), is a Hindu nationalist and member of the right-wing Rashtriya Swayamsevak Sangh (RSS).
Document 5: Khadki railway station: Khadki Railway Station is on the Mumbai - Pune Railway route. It is owned by central railways department of Indian Railways. Sinhagad Express, Sahyadri Express, Deccan Express, Koyna Express and Mumbai - Chennai Express have their halt at this station. It has four platforms, six lines and one footbridge and is an electrified station. The nearest railway station is Pune Railway Station and nearest airport is Pune International Airport at Lohegaon (Viman Nagar). The Pichola offers accommodation which is just 4 km away from the station. This is a Major halt for Military. This makes this an important station on Pune Suburban Railway. This station is to the east of Khadki Auto Rickshaw Stand and is near Khadki Bazaar. This Station was built for access to Khadki Cantonment (Kirkee Cantonment). Even today this station is mostly used for Indian Army. The CAFVD Sports Stadium is in front of this railway station which hosts local Association Football and Field Hockey matches.
Document 6: Kertajati International Airport: Kertajati International Airport, also known as Majalengka Airport, is an airport under construction on the northeastern coast of West Java, Indonesia. Kertajati International Airport is located in Majalengka Regency, around 90 kilometers east of Bandung. It is being constructed to complement the Husein Sastranegara International Airport in Bandung, but also serve Cirebon and parts of West and Central Java. The project is estimated to cost Rp.25,4 trillion. The toll road that will give access to the new airport has started its construction in 2011. The airport management PT Bandara Internasional Jawa Barat (BIJB) has signed MOU with Railink to build airport train service. The airport which is expected to commence operation in the first half of 2018 will be operated by state owned Angkasa Pura II.
Document 7: P. Sathasivam: Palanisamy Sathasivam (born 27 April 1949) is the current Governor of Kerala, in office since 2014. He previously served as the 40th Chief Justice of India from 2013 to 2014. Sathasivam is the second judge from Tamil Nadu to become the CJI. He is also the first former Chief Justice of the Supreme Court to be appointed as the Governor of a state.
Document 8: Air India One: Air India One (also referred to as AI-1 or AIC001) is the call sign of any aircraft with the Prime Minister or President of India on board. Air India is the national airline of India. The aircraft is operated as VIP flight by the Indian Air Force (IAF). The IAF's Air Headquarters Communication Squadron, based at Indira Gandhi International Airport (formerly Palam Air Force Base) in New Delhi, is in charge of operating these aircraft.
Document 9: Chhatrapati Shivaji International Airport: Chhatrapati Shivaji International Airport (IATA: BOM, ICAO: VABB) , formerly known as Sahar International Airport, is the primary international airport serving the Mumbai Metropolitan Area, India.
Document 10: Indian vice-presidential election, 2007: The 2007 Indian vice-presidential election was held on 10 August 2007 to elect Vice-President of India to serve from 2007 until 2012. Mohammad Hamid Ansari from Indian National Congress was elected for the post. The incumbent, Bhairon Singh Shekhawat did not seek reelection and instead ran for President in 2007 election, where he lost to Pratibha Patil. He subsequently resigned from VP post days before Patil's inauguration.
Document 11: Venkaiah Naidu: Muppavarapu Venkaiah Naidu (born 1 July 1949) is an Indian politician and the current Vice-President of India, in office since 11 August 2017. Previously, Naidu served as the Minister of Housing and Urban Poverty Alleviation, Urban Development and Information and Broadcasting in the Modi Cabinet. A prominent leader of the Bharatiya Janata Party, he also served as its national president from 2002 to 2004. Earlier, he was the Union Cabinet Minister for Rural Development in the Atal Bihari Vajpayee government.
Document 12: Kempegowda International Airport: Kempegowda International Airport (IATA: BLR, ICAO: VOBL) is an international airport serving Bangalore, the capital of the Indian state of Karnataka. Spread over 4000 acre , it is located about 40 km north of the city near the village of Devanahalli. It is owned and operated by Bangalore International Airport Limited (BIAL), a public–private consortium. The airport opened in May 2008 as an alternative to increased congestion at HAL Airport, the original primary commercial airport serving the city. It is named after Kempe Gowda I, the founder of Bangalore. Kempegowda International Airport became the Karnataka's first fully solar powered airport developed by CleanMax Solar.
Document 13: Vibhuti Bhushan Sharma: Dr.Vibhuti Bhushan Sharma was the youngest president elected in the history of Rajasthan High Court Bar Association, Jaipur, elected in March 2012. He was also elected General Secretary of the same Association in the year 2007–2008. Dr. Sharma is also Government Counsel for Government of Rajasthan thus represents State Government before Rajasthan High Court. The Indian National Congress, apparently in Election Mode 2014 has recently appointed Vibhuti Bhushan Sharma a member of the important committee to monitor implementation of Election Manifesto 2009. Dr.Vibhuti Bhushan Sharma has been appointed as member of the Congress Manifesto Committee constituted by AICC (All India Congress Committee) for the upcoming Assembly Elections 2013 in the state of Rajasthan. He has also worked as member of the Congress Manifesto Committee in Assembly Elections 2008. He is M.A. in Public Administration from University of Rajasthan at Jaipur, Ph.D. in Total Quality Education, LL.B, and Bachelor in Journalism and Mass Communication. His father Late Mr. Radhey Shyam Sharma, who worked in the Rajasthan Administrative Services, translated many religious books in English Verse to Sanskrit, like Shri Mad Bhagwad Gita, Shri Durga Saptshati, Shri Ram Charit Manas, Ram Gita, Ashtavakra Gita, Shiv Mahiman Strota, Shiv Tandav Stotra and a Dictionary Vishva Mithak Kosh (written in Hindi on mythological characters).
Document 14: Aeronautical Development Agency: The Aeronautical Development Agency (ADA) of India's Ministry of Defence was established at Bangalore, in 1984 to oversee the development of the nation's Light Combat Aircraft (LCA) programme. Currently, the organisation is involved in design and development of multiple versions of LCA, HAL AMCA and UCAV. Dr. Girish S. Deodhare is the Programme Director, Combat Aircraft and Director, ADA. He's one of the students of Dr. Vidyasagar, who is considered to be the pioneers of advanced technology of his times.
Document 15: Taj International Airport: The Taj International Airport is a proposed international airport to be constructed in Jewar (56 km from Noida) in Gautam Budh Nagar district of Uttar Pradesh. It is well connected with cities Agra, Bulandshahr, Greater Noida and Palwal. The Jewar airport is 85 km from Indira Gandhi International Airport at Delhi and 280 km from Hisar Airport. In May 2017, the airport was granted approval by the union government cabinet as the second airport for the NCR. In July 2017, the Union Chief Secretary for Aviation warned Uttar Pradesh government to expedite the planning process as Hisar Airport was also pushing for its competing union cabinet approval for another airport for the NCR, thus prolonging the return on investment for both airports due to still-feasible-but-diluted viability for both.
ground_truth: Governor of Bihar