Question: What is the name of the astronaut of Indian-Slovenian descent who was a member of the ISS Expedition 15 crew before Clayton Anderson?

Context paragraphs:
Sunita Williams: Sunita Lyn "Suni" Williams (born September 19, 1965) is an American astronaut and United States Navy officer of Indian-Slovenian descent.  She formerly held the records for total spacewalks by a woman (seven) and most spacewalk time for a woman (50 hours, 40 minutes).  Sunita was assigned to the International Space Station as a member of Expedition 14 and Expedition 15.  In 2012, she served as a flight engineer on Expedition 32 and then commander of Expedition 33.

Soyuz TMA-7: Soyuz TMA-7 (Russian: Союз ТМА-7 ) was a transport mission for portions of the International Space Station (ISS) "Expedition 12" crew launched October 1, 2005.  The flight delivered ISS Commander William McArthur and ISS Flight Engineer Valery Tokarev to the station to replace "Expedition 11" crew members.  Spaceflight Participant Gregory Olsen joined the TMA-7 crew for the ascent and docking with the ISS, spent approximately eight days aboard conducting experiments, then returned to Earth with the outgoing members of "Expedition 11" aboard Soyuz TMA-6.  McArthur and Tokarev were joined on their return trip to Earth by Flight Engineer Marcos Pontes who launched aboard Soyuz TMA-8 and spent approximately seven days aboard the ISS conducting experiments for the Brazilian Space Agency.

Expedition 35: Expedition 35 was the 35th long-duration mission to the International Space Station (ISS).  The expedition started 13 March 2013, and marked the first time a Canadian astronaut – Colonel Chris Hadfield – was in command of the station.  Expedition 35 was also only the second time an ISS crew is led by neither a NASA astronaut, nor a Roscosmos cosmonaut, after Expedition 21 in 2009, when ESA astronaut Frank De Winne was in command.

Frank De Winne: Frank, Viscount De Winne (born 25 April 1961, in Ledeberg, Belgium) is a Belgian Air Component officer and an ESA astronaut.  He is Belgium's second person in space (after Dirk Frimout).  He was the first ESA astronaut to command a space mission when he served as commander of ISS Expedition 21.  ESA astronaut de Winne serves currently as Head of the European Astronaut Centre of the European Space Agency in Cologne/Germany (Köln).

Sheikh Muszaphar Shukor: Sheikh Muszaphar Shukor Al Masrie bin Sheikh Mustapha (born 27 July 1972) is a Malaysian orthopaedic surgeon and the first Malaysian astronaut.  tionas launched to the International Space Station aboard Soyuz TMA-11 with the Expedition 16 crew on 10 October 2007.  Sheikh Muszaphar flew under an agreement with Russia through the Angkasawan program, and returned to Earth on 21 October 2007, aboard Soyuz TMA-10 with the Expedition 15 crew members, Fyodor Yurchikhin and Oleg Kotov.

Soyuz TMA-10: Soyuz TMA-10 was a human spaceflight mission using a Soyuz-TMA spacecraft to transport personnel to and from the International Space Station (ISS).  The mission began at 17:31:09 UTC on April 7, 2007 when the spacecraft was launched from the Baikonur Cosmodrome by a Soyuz FG launch vehicle.  Soyuz TMA-10 brought to the station two members of ISS Expedition 15 crew, along with one spaceflight participant.  It remained at the space station as an escape craft until it was replaced by Soyuz TMA-11 in October 2007.

Clayton Anderson: Clayton Conrad Anderson (born February 23, 1959) is a retired NASA astronaut.  Launched on STS-117, he replaced Sunita Williams on June 10, 2007 as a member of the ISS Expedition 15 crew.

Susan Helms: Susan Jane Helms (born February 26, 1958) is a retired lieutenant general in the United States Air Force and a former NASA astronaut.  She was the commander, 14th Air Force (Air Forces Strategic); and commander, Joint Functional Component Command for Space at Vandenberg Air Force Base in California.  Helms was a crew member on five Space Shuttle missions and was a resident of the International Space Station (ISS) for over five months in 2001.  While participating in ISS Expedition 2, she and Jim Voss conducted an 8-hour and 56 minute spacewalk, the world record.  Helms officially retired from the United States Air Force in 2014.

Fyodor Yurchikhin: Fyodor Nikolayevich Yurchikhin (Russian: Фёдор Николаевич Юрчихин, Greek: Θεόδωρος Γιουρτσίχιν του Νικόλαου; born 3 January 1959 ), is a Russian cosmonaut of Greek descent, engineer and RSC Energia test-pilot who has flown on five spaceflights. His first spaceflight was a 10-day Space Shuttle mission STS-112.  His second was a long-duration stay aboard the International Space Station (ISS) as a Flight Engineer for Expedition 15; for this mission he was launched in the Soyuz TMA-10 spacecraft.  He has undertaken two further long-duration stays aboard the ISS, as a crew member of Expedition 24 / 25.  For this mission he was launched with the spacecraft Soyuz TMA-19, and he landed in November 2010, also with the TMA-19 spacecraft.  He served as Soyuz Commander for his fourth mission aboard Soyuz TMA-09M, as Flight Engineer for Expedition 36 and ISS Commander for Expedition 37.  In April 2017, Yurchikhin launched on Soyuz MS-04 for the fifth spaceflight of his career, a six-month mission to the ISS as part of Expedition 51 and 52, for which he was the Commander.

Expedition 15: Expedition 15 was the 15th expedition to the International Space Station (ISS).  Four crew members participated in the expedition, although for most of the expedition's duration only three were on the station at any one time.  During Expedition 15, the ISS Integrated Truss Structure was expanded twice: STS-117 brought the S3/S4 truss, and STS-118 brought the S5 truss.

Supporting paragraphs: Clayton Anderson Sunita Williams
Answer: Sunita Williams