Question: in the 1975–76, Seattle SuperSonics lost to a team based in which US state ?

Context paragraphs:
Seattle SuperSonics all-time roster: The Seattle SuperSonics were an American professional basketball team based in Seattle, Washington.  They played in the Western, Pacific and Northwest divisions of the Western Conference in the National Basketball Association (NBA).  The team joined the NBA in 1967 as an expansion team, and won their first and only NBA Championship out of 22 playoffs appearances in the 1979 NBA Finals.  The SuperSonics played their home games mainly at the Seattle Center Coliseum, the Kingdome during eight seasons, and the Tacoma Dome for one season while the Coliseum was being remodeled and later renamed KeyArena.

George Irvine: George R. Irvine (February 1, 1948 – May 8, 2017) was an American professional basketball player and coach.  A 6'6" forward, Irvine played collegiately at the University of Washington, where he was a first-team All-Pac-8 selection in 1970.  He was selected by the Seattle SuperSonics in the 8th round of the 1970 NBA Draft.  However, he never played for his hometown SuperSonics, nor for any other NBA team.  Instead, Irvine opted to play for the team that selected him in the American Basketball Association draft, the Virginia Squires.  Irvine played for the Squires for five seasons and then played a final pro season with the Denver Nuggets during the 1975-76 season, the ABA's final season prior to the ABA-NBA merger.

Seattle SuperSonics relocation to Oklahoma City: The Seattle SuperSonics relocation to Oklahoma City was a successful effort by the ownership group of the Seattle SuperSonics to relocate the team from Seattle, Washington to Oklahoma City, Oklahoma.  The team began play as the Oklahoma City Thunder in the 2008–09 basketball season, after becoming the third National Basketball Association (NBA) franchise to relocate in the 2000s.

1974–75 Seattle SuperSonics season: The 1974–75 Seattle SuperSonics season was the 8th season of the Seattle SuperSonics in the National Basketball Association (NBA).  In their second season with Bill Russell as head coach and with rookies comprising half the roster, the SuperSonics finished the regular season in 4th place in the Western Conference with a 43–39 record and reached the playoffs for the first time in franchise history.  After defeating the Detroit Pistons in 3 games in the first round in a best-of-three series, the team fell to the future champions Golden State Warriors in six games.

1973–74 Seattle SuperSonics season: The 1973–74 Seattle SuperSonics season was the 7th season of the Seattle SuperSonics in the National Basketball Association (NBA).  Following the resignation of Lenny Wilkens as a head coach after the 1971–72 season and a poor campaign in the 1972–73 season that saw the departure of general manager Bob Houbregs, the Sonics hired Boston Celtics' stalwart Bill Russell as head coach and general manager.  With Russell at the helm, the team finished in 6th place in the Western Conference with a 36–46 record.  The Sonics' home court, Seattle Center Coliseum, was the venue for the 1974 NBA All-Star Game.

Bob Kloppenburg: Bob Kloppenburg (born July 28, 1927) is an American professional basketball coach, who served as an interim head coach of the Cleveland Cavaliers in the early 1980s.  Kloppenburg later served as an assistant coach for the Seattle SuperSonics, Denver Nuggets and Toronto Raptors.  While with the Seattle SuperSonics (1985–1996), Kloppenburg was the assistant coach for the NBA West All-Star team in 1994.  He contributed to Seattle's three 60 win seasons in the 90's.  His NAIA small college coaching career saw him win five district championships in twenty years for an overall record of 369-161.  Widely regarded as the innovator of the SOS Defensive System, a system known for its ability to create turnovers because of "contact switching" on every screen and intense ball pressure with trapping principles.  Kloppenburg is, together with Ernie Woods, the co-founder of basketball coaching website "HoopTactics.com".

Seattle SuperSonics: The Seattle SuperSonics, commonly known as the Sonics, were an American professional basketball team based in Seattle, Washington.  The SuperSonics played in the National Basketball Association (NBA) as a member club of the league's Western Conference Pacific and Northwest divisions from 1967 until 2008.  After the 2007–08 season ended, the team relocated to Oklahoma City, Oklahoma, and now plays as the Oklahoma City Thunder.

1975–76 Seattle SuperSonics season: The 1975–76 Seattle SuperSonics season was the 9th season of the Seattle SuperSonics in the National Basketball Association (NBA).  The SuperSonics finished the season in second place in the Western Conference with a 43–39 record, the same as the previous year and reached the playoffs for a second consecutive season, where they lost to the Phoenix Suns in the Conference Semifinals in six games.

1967–68 Seattle SuperSonics season: The 1967–68 Seattle SuperSonics season was the inaugural season for the expansion Seattle SuperSonics franchise in the National Basketball Association.  The team's official arena was the Seattle Center Coliseum.

Phoenix Suns: The Phoenix Suns are an American professional basketball team based in Phoenix, Arizona.  The Suns compete in the National Basketball Association (NBA) as a member team of the league's Western Conference Pacific Division, and are the only team in their division not to be based in California.  Since 1992, the Suns have played their home games at Talking Stick Resort Arena in downtown Phoenix.

Supporting paragraphs: 1975–76 Seattle SuperSonics season Phoenix Suns
Answer: Arizona