Question: Which EP from Lee Tae-min translates to "Solitary Goodbye"?

Context articles: List of awards and nominations received by Lee Tae-min
Piedmont Mountains
Good Bye (EP)
Sayonara Hitori
Lights Out (manhwa)
Ceropales
Tell Me Goodbye
Lee Tae-min discography
Woman Gone and Say Goodbye
Lee Tae-min

List of awards and nominations received by Lee Tae-min
The Piedmont Mountains are outlying mountains, sometimes called “low mountains”, that typically occur in the western Piedmont near the Blue Ridge.
 Most of the features within the Piedmont physiographic region of North America lie either on the eastern border where the plateau plunges onto the Coastal Plain at the Fall Line, in the broad valleys of the river systems, or on the western border where Piedmont Mountains likely occur.
 Occasionally, due to diverse rock formations, folds and outcroppings, these mountains can rise at various locations across the Piedmont like the Uwharrie Mountain Range in North Carolina or the Pine Mountain Range in Georgia.
 Most of these mountains, or hills, are what is left of ancient eroded mountains.
 Some, like Stone Mountain in Georgia, are solitary rock domes called Monadnocks which become further exposed with erosion.
 The Piedmont is part of the greater Appalachian Mountain Range and is also referred to as the Appalachian Plateau.
 The French definition of piedmont in itself translates as foothill; however, a Piedmont Mountain may be that of greater significance or prominent elevation.
Goodbye is the re-issued EP by Hahm Eun-jung (also known as Elsie).
 The title song is "Goodbye," which is an OST of Eun-jung's Webdrama "Only for You".
Sayonara Hitori (さよならひとり, "Solitary Goodbye") is the first EP in Japanese (second overall) by Taemin under EMI Records, a division of Universal Music Japan.
 It was released digitally and physically on July 27, 2016.
Lights Out is the 9-volume manhwa written by Lee Myung-jin, the author of Ragnarok.
 This manhwa is about the high school student Nam Gung Geon, a violent transfer student from the Chi Jon High School to Puk Ye High School.
 His life is changed by meeting Min Seung-Ah, the land-lady of the inn named "Fate", granddaughter of the inn owner, and also a beautiful girl.
 In the last of the story, Geon meets many friends such as Sin Na-Rae, Kim Mi-Na, Ji-Ae, Kim Tae-Min, Son Seo-Ho, etc. and many girls have a crush of him because he wins the 2nd award of the Motor Grandprix.
Ceropales is a genus of kleptoparasitic spider wasps from the sub-family Ceropalinae of the family Pompilidae.
 They are characterised by the taking of the spider prey of other solitary wasps, mainly Pompiliddae but members of the Sphecidae are also kleptoparasitised.
 In some languages their name translates into English as Cuckoo Spider Wasp.
"Tell Me Goodbye" is a song released by the South Korean boy band Big Bang.
 It's the group's fourth Japanese single and second single from the album "Big Bang 2".
 It was released on June 9, 2010.
 "Tell Me Goodbye" is sung in Japanese, with the exception of a few English lines.
 A Korean version of the song, "Hands Up", was added on the group's fourth Korean EP "Tonight".
The discography of the South Korean singer Lee Tae-min (most often credited as Taemin), consists of one studio album, three extended plays, six singles - five as lead artist and one as featured artist - and four appearances in soundtracks.
 Taemin released his first extended play, entitled "Ace" on August 18, 2014, along with its title track "Danger".
 On February 23, 2016, he released his first studio album, entitled "Press It", featuring the title track "Press Your Number".
 The album peaked at #1 on iTunes charts in Japan, Vietnam, Taiwan, Singapore, Thailand, Finland, and Hong Kong.
 It was also the #1 album sold on Hanteo and Synnara charts during its first week, in addition to selling more than 76,000 copies in its first month in South Korea.
<ref name="Gaon Album Ranking Monthly (2/2016)"> </ref> "Press Your Number" debuted at #79 position on the Japan Hot 100, the first song by Taemin to appear on the chart.
 On July 27, 2016, released his first Japanese mini-album, entitled "Sayonara Hitori", including 4 new songs and "Press Your Number" (Japanese Version).
 The album sold more than 38,000 copies on the first day of release, and shot up to third place on the daily albums charts in Japan.
 Released his second Japanese mini-album, titled "Flame of Love", on July 18, 2017.
 After the release, the album immediately ranked #1 on Japan's daily albums charts, selling more than 45,000 copies.
Woman Gone And Say Goodbye was the second ep released by Liverpool band The Stairs, the first being "Weed Bus".
 The EP was issued in several formats: CD ep; 7" vinyl single with picture sleeve; 12" vinyl 45rpm single with picture sleeve; 12" 45rpm vinyl DJ promo single with a plain black sleeve.
 Both 12" vinyl single formats have "What do you mean you don't smoke?"
 inscribed in the matrix on Side A.
Lee Tae-min (born July 18, 1993), better known by the mononym Taemin, is a South Korean singer and actor.
 He debuted as a vocalist of the group Shinee in May 2008 under S.M. Entertainment.
 He began his acting career in 2009 with MBC's comedy "Tae Hee, Hye Kyo, Ji Hyun" as Junsu.