Question: Which musician has a solo punk rock project: Toshiko Koshijima or Frank Iero?

full_context: Document 1: Toshiki Kadomatsu: Toshiki Kadomatsu (角松敏生 , Kadomatsu Toshiki ) (born 12 August 1960) is a Japanese rock/R&B singer-songwriter, musician, and producer. He has released many studio albums, as well as several instrumental and live albums. He studied Philosophy at Nihon University. He has been active since at least 1981 and is still active, having released his most recent album in March 2012. In 1987 he released the hit instrumental album "SEA IS A LADY" which charted at #4. He has written and produced music for other artists, including "You're My Only Shinin' Star" by Miho Nakayama, which reached #1 on the Oricon weekly charts and stayed there for 18 weeks. He composed the music for the 2002 film "Shiroi-fune".
Document 2: Toshiko Koshijima: Toshiko Koshijima (こしじま としこ , Koshijima Toshiko , born March 3, 1980 in Kanazawa, Ishikawa) is a Japanese singer. Along with composer, record producer and DJ Yasutaka Nakata, she is a lead vocalist of the electronica band Capsule, which they formed in 1997 when both were 17. Their formal debut came in 2001 with the release of the single "Sakura". Two more singles and their debut album, "High Collar Girl", followed the same year.
Document 3: Yasutaka Nakata: Yasutaka Nakata (中田 ヤスタカ , Nakata Yasutaka , born February 6, 1980 in Kanazawa, Ishikawa) is a Japanese DJ, record producer, composer and songwriter. He formed the band Capsule in 1997 with vocalist Toshiko Koshijima and himself as composer and record producer when both were 17. They formally debuted in 2001 with the song "Sakura."
Document 4: Frank Iero: Frank Anthony Iero, Jr. (born October 31, 1981) is an American musician who was the rhythm guitarist and backup vocalist of the rock band My Chemical Romance and post-hardcore band Leathermouth. He has a solo punk rock project titled Frank Iero and the Patience. He released an album under the previous name of frnkiero andthe cellabration titled "Stomachaches" which was released on August 26, 2014. The first single off the album, called "Weighted", premiered on BBC Radio One on July 8, 2014.
Document 5: Scott Ian: Scott Ian (born Scott Ian Rosenfeld; December 31, 1963) is an American musician, best known as the rhythm guitarist, backing and additional lead vocalist, and the only remaining original founding member of the thrash metal band Anthrax. He also writes the lyrics on all their albums. Ian is the guitarist and a founding member of the crossover thrash band Stormtroopers of Death. He has hosted "The Rock Show" on VH1 and has appeared on VH1's "I Love the..." series, "" and ""Supergroup" (TV series)". Ian is also the rhythm guitarist for the metal band The Damned Things.
Document 6: Keiko Utoku: Keiko Utoku (宇徳敬子 , "Utoku Keiko" , born April 7, 1967 in Izumi, Kagoshima, Japan) is a Japanese singer and songwriter under UK Sweet label.Keiko made first debut with chorus part in band B.B.Queens then joined with J-pop female band Mi-Ke from 1991 to 1993, before starting a solo career. As a child, Utoku listened to a lot of music, including music made by Momoe Yamaguchi. She has written and sung many songs, such as "Wasurenagusa", and Sonic the Hedgehog fans remember her for her vocal work in the original version of the Sonic CD video game's opening and closing themes in Japan and Europe, "Sonic – You Can Do Anything" and "Cosmic Eternity – Believe In Yourself" in 1993. In addition, she also provided Sonic's vocals in the game. At recent dates, she has released 15 singles, 5 digital singles, 4 studio albums, 1 mini and 2 best albums.
Document 7: Leathermouth: Leathermouth (often typeset as LeATHERMØUTH) was an American hardcore punk band led by Frank Iero. The band formed in 2007, and in January 2009 released their first album "XO".
Document 8: Frank Hannon: Frank Hannon (born October 3, 1966 in Sacramento, California), is best known as the guitarist, songwriter and a co-founder of the multi-platinum band Tesla, and is now established as a solo singer/songwriter with his album Gypsy Highway. Drawing on his early childhood influences of American Folk artists such as Bob Dylan, John Denver, and Willie Nelson, Frank Hannon has showcased his lyrical, vocal, and "acoustic" storytelling song writing abilities on the self produced album. Apart from recent Tesla concerts, Frank Hannon has been performing solo "acoustic" shows, one in particular was the KGGO "Summer Jam" in Des Moines Iowa where he performed throughout the day in between artist such as John Waite, 38 special, and BTO in front of 10,000 fans singing by himself with an acoustic guitar, and recently performing with Aaron Lewis who is also known for such solo acoustic performances. Frank has recently formed the independent label RedHawk Records.
Document 9: Capsule (band): Capsule (カプセル , Kapuseru ) is a Japanese electronica band consisting of record producer Yasutaka Nakata and vocalist Toshiko Koshijima.
Document 10: XO (Leathermouth album): XO (often typeset as XØ) is the debut album released by Leathermouth, My Chemical Romance's rhythm guitarist Frank Iero's hardcore punk side project. Although the album did not chart on the "Billboard" 200, it did reach No. 21 on the Top Heatseekers chart.
Document 11: Minoru Kojima: Minoru Kojima (born 11 October 1968) was the original guitarist for Japanese experimental punk band The Mad Capsule Markets. He is also known as Scene or Shin Murohime, which is apparently a conglomeration of characters from the names of different Boøwy members. He started The Mad Capsule Markets (which at the time was called Berrie) in 1985, with vocalist Hiroshi Kyono, in an attempt to create "loud, punk music" after becoming "bored" with music played on television and radio. After the release of Mad's Noël Coward "Humanity", Minoru left the band and was replaced by "support guitarist" Ai Ishigaki. In 1991 Minoru started Die in Cries and in 1994 became a member of The Bloody Imitation Society. Over the years Minoru worked with more bands and even went solo for a short time before returning to Mad to play on "Good Day" from their album "010" and playing on their "Cistm Konfliqt" tour.
Document 12: Frank Iero and the Patience: Frank Iero and the Patience is an American rock band from Belleville, New Jersey. Their debut album, "Stomachaches", was released on August 25, 2014. Their second album "Parachutes" was released on October 27, 2016 with the promotional singles "I'm A Mess", "Remedy", and "Oceans". Their current lineup consists of Frank Iero, Evan Nestor, Matt Olsson, and Alex Grippo. Steve Evetts is credited with writing and recording the bass tracks on "Parachutes".
Document 13: Parachutes (Frank Iero and the Patience album): Parachutes is the second album by guitarist and singer-songwriter Frank Iero and the follow up to 2014's "Stomachaches". It was released on October 28, 2016 via Vagrant Records with exclusive license to Hassle Records for the UK release.
Document 14: Stereo Worxxx: Stereo Worxxx (sometimes titled as Stereo Works) is the thirteenth studio album by electronica band Capsule. It was released on March 7, 2012, by Yamaha. Produced, composed and written by Capsule member Yasutaka Nakata, "Stereo Worxxx" was the duo's last album with their label Yamaha until transferring with Warner Music Japan and Nakata's own label, Unborde. Musically, "Stereo Worxxx" focuses on electronic dance music and house music with Capsule member Toshiko Koshijima singing on all tracks apart from "Motor Force".
Document 15: Toshi (musician): Toshimitsu Deyama (出山利三 , Deyama Toshimitsu , born October 10, 1965 in Tateyama, Chiba) , known exclusively by his stage name Toshi, is a Japanese singer and songwriter. He is best known as the lead vocalist and a co-founder of the heavy metal band X Japan, which disbanded in 1997. Toshi then went on to have an extensive solo career. In 2007, X Japan reunited and began an ongoing world tour in 2010. His distinctive, impassioned tenor vocals have been compared to those of Steve Perry.
ground_truth: Frank Anthony Iero, Jr.