Question: Which album did Celine Dion release first: "The Colour of My Love" or "Unison"?

full_context: Document 1: The Colour of My Love Concert: The Colour of My Love Concert is Celine Dion's second home video release. It was filmed on 7–8 September 1993 at Le Théàtre Capitole, Quebec City, Canada, before "The Colour of My Love" album release and The Colour of My Love Tour. The concert was aired in December 1993 in Canada on CTV and in February 1994 in the United States on the Disney Channel. It was released on VHS on 19 October 1995 and on DVD on 6 January 1998.
Document 2: René Angélil: René Angélil, {'1': ", '2': ", '3': ", '4': "} (] ; 16 January 1942 – 14 January 2016) was a Canadian musical producer, talent manager and singer. He was the manager (1981–2014) and husband (1994–2016; his death) of singer Celine Dion.
Document 3: Where Does My Heart Beat Now: "Where Does My Heart Beat Now" is a song performed by Canadian singer Celine Dion, taken from her first English-language studio album, "Unison" (1990). It was released by Columbia Records as the third single in Canada on 1 October 1990. It was also issued as the first single in the United States in late 1990, and in other parts of the world in early 1991. "Where Does My Heart Beat Now" was written by Robert White Johnson and Taylor Rhodes in 1988 and recorded by Dion one year later. It was produced by Christopher Neil. Dion premiered this song at the Eurovision Song Contest 1989 in Switzerland, where she performed it along with her 1988 winning track, "Ne partez pas sans moi."
Document 4: Celine in Las Vegas, Opening Night Live: Celine in Las Vegas: Opening Night Live is a one-off American television special by the Canadian singer Celine Dion that was broadcast by CBS on 25 March 2003 and was recorded at the 4,000-seat Colosseum at Caesars Palace in Las Vegas, Nevada the very same day. Hosted by Justin Timberlake, the special celebrated the Opening Night performance of Dion's first Las Vegas residency show "A New Day..." which initially ran for 3 years being extended for an additional 2 years in Las Vegas. It was also promotion for Dion's studio album, "One Heart". The special featured only 8 performances of songs from the original setlist of "A New Day...". The special also featured backstage footage and a Behind the Scenes featurette at the making of "A New Day...".
Document 5: Number 1 to Infinity (residency show): Carey announced the residency show during her pre-recorded interview on "The Ellen DeGeneres Show". The announcement follows reports that Canadian singer Celine Dion would not be returning to the venue who postponed her shows so that she could continue to take care of her ill husband. Later that spring 2015 Celine announced that she will return to Caesars Palace on August 27, 2015. Speaking of the residency, Carey said "I'm going to do my first ever residency in Vegas at Caesars. This is a special event for me. And again, I have to hope that the fans will enjoy this cause I'm gonna be performing, which was kind of inspired by my album "#1's", and this is now the updated version with eighteen of them. Hopefully other people will enjoy this. I've never done this before." Tickets went on sale January 15, 2015.
Document 6: La voix du bon Dieu: La voix du bon Dieu (meaning "The Good Lord's Voice") is the debut studio album by Canadian singer Celine Dion, released on 6 November 1981 by Super Étoiles. It is a French-language album issued in Quebec, Canada only. It was preceded by the lead single, "Ce n'était qu'un rêve". The album was produced by René Angélil, Eddy Marnay and Daniel Hétu. It includes six original songs and three covers: Renée Lebas' "T'ire l'aiguille", Berthe Sylva's "Les roses blanches" and "L'amour viendra", a French adaptation of Dario Baldan Bembo's "Dolce fiore".
Document 7: Celine Dion: Celine Dion, {'1': ", '2': ", '3': ", '4': "} ( ; ] ; born Céline Marie Claudette Dion; 30 March 1968) is a Canadian singer and businesswoman. Born into a large family from Charlemagne, Quebec, Dion emerged as a teen star in the French-speaking world after her manager and future husband René Angélil mortgaged his home to finance her first record. Dion first gained international recognition in the 1980s by winning both the 1982 Yamaha World Popular Song Festival and the 1988 Eurovision Song Contest where she represented Switzerland. Following a series of French albums during the 1980s, she signed on to Epic Records in the United States. In 1990, Dion released her debut English-language album, "Unison", establishing herself as a viable pop artist in North America and other English-speaking areas of the world.
Document 8: Celine Dion albums discography: Canadian singer Celine Dion has released twenty-six studio albums, seven live albums, seventeen compilation albums, and twenty-one box sets. Her debut album, "La voix du bon Dieu" was issued in 1981. In the '80s, Dion released her French-language albums in Canada, with several compilation albums issued also in France. Her first English-language album, entitled "Unison" was released in 1990 and has sold over three million copies worldwide. It was followed by "Dion chante Plamondon" in 1991 and "Celine Dion" in 1992. The latter became one of six of her albums to be certified Diamond in Canada for shipments of at least one million units. Dion's popularity became well-established with her 1993 album, "The Colour of My Love", which topped the charts in various countries, including the United Kingdom, Canada, and Australia, and has sold twenty million copies around the world. In the United States, it was certified six-times platinum. Released in 1995, "D'eux" became the best-selling French-language album in history, with sales of ten million copies worldwide. In France alone, "D'eux" spent forty-four weeks at the top of the chart and has sold 4.5 million units, becoming the best-selling album of all time. It also became Dion's first out of six Diamond-certified albums in France.
Document 9: Unison (video): Unison is Celine Dion's first home video, released on VHS on 2 July 1991. It includes the music videos from her English debut album "Unison".
Document 10: Un amour pour moi: "Un amour pour moi" (meaning "A Love for Me") is the third single from Celine Dion's album "Mélanie". It was released in 1984 in Quebec, Canada.
Document 11: Celine Dion singles discography: Canadian singer Celine Dion has released 153 singles. At age twelve, Dion collaborated with her mother and brother, Jacques to compose her first song, "Ce n'était qu'un rêve", which was released as a single in Quebec, Canada in 1981. During the 1980s, Dion topped the Quebec chart with six of her singles, including "D'amour ou d'amitié", "Mon ami m'a quittée", and four songs from the "Incognito" album. In 1985, "Une colombe" won two Félix Awards for Song of the Year and Best Selling Single of the Year. Both "D'amour ou d'amitié" and "Une colombe" were certified Gold in Canada. Elsewhere, "Tellement j'ai d'amour pour toi" won the Best Song Award at the World Popular Song Festival in Japan in 1982, and in 1983, Dion became the first Canadian artist to receive a Gold record in France for the single "D'amour ou d'amitié". Further success in Europe came when she represented Switzerland in the Eurovision Song Contest 1988 with the song "Ne partez pas sans moi", which later won the contest.
Document 12: Live in Concert (video): Live in Concert is the second live music video title by singer and actress Cher. Released by HBO in 1999, it contained footage from Cher's Do You Believe? Tour specials filmed at the MGM Grand Garden Arena in Paradise, Nevada in 1999. It featured tracks from the Gypsys, Tramps & Thieves album to the Believe album, alongside various covers. She has 7 costume changes by stylist Bob Mackie.
Document 13: All the Way... A Decade of Song (TV special): All the Way... A Decade of Song is the second one-off American television special by Canadian singer Celine Dion that was broadcast by CBS on 24 November 1999. The special was a promotion for her first English-language greatest hits album of the same name, "All the Way... A Decade of Song". The special was filmed on 7 October 1999 at the reopening of Radio City Music Hall in New York City. It featured Dion (backed by her touring band) performing some of her greatest hits and new songs. She was also joined by special guests Grammy winning Latin singing sensation Gloria Estefan and Pop Boyband NSYNC (who previously recorded their Oscar nominated duet "Music of My Heart"). The television special was the second-most-watched program in its time slot, with an 8.3 rating and a 14 share. It also marked Dion's final concert special for CBS before taking a 2-year break from the music industry.
Document 14: Celine Dion in Concert: Celine Dion in Concert was the fourth concert tour by Celine Dion. The tour consisted of 51 shows held between 13 July 1992 and 13 May 1993. It was organized to support the album "Celine Dion".
Document 15: Devotional (video): Devotional – A Performance Filmed by Anton Corbijn is a video release by Depeche Mode, featuring almost an entire concert from their 1993 "Devotional Tour", filmed in Barcelona, Spain (Palau Sant Jordi), Liévin, France (Stade Couvert Régional) and Frankfurt, Germany (Festhalle). It was directed by Anton Corbijn, and released in 1993. It was nominated for the Grammy Award for Best Long Form Music Video in 1995. The soundtrack was recorded in Liévin, Stade Couvert Régional, on 29 July 1993.
ground_truth: Unison