Problem: Given the question: Information:  - "Manic Monday" is a song by the American pop rock band The Bangles, and the first single released from their second studio album, "Different Light" (1986). It was written by American musician Prince, using the pseudonym "Christopher". Originally intended for the group Apollonia 6 in 1984, he offered the song to The Bangles two years later. Lyrically, it describes a woman who is waking up to go to work on Monday, wishing it were still Sunday where she could relax.  - "Walk Like an Egyptian" is a song made famous by American band the Bangles. It was released in 1986 as the third single from the album "Different Light". It was a million-selling single and became "Billboard"'s number-one song of 1987. The song also served as the end theme of the anime adaptation "JoJo's Bizarre Adventure" during the first half of the show's "Stardust Crusaders" arc.  - Pop rock is rock music with a lighter, smoother approach that is more reminiscent of commercial pop music. Originating in the 1950s as an alternative to rock and roll, early pop rock was influenced by the beat, arrangements, and style of rock and roll (and sometimes doo wop), but placed a greater emphasis on professional songwriting and recording craft. The detractors of pop rock often deride it as a slick, commercial product, less authentic than rock music.  - The Tuesdays were a Norwegian rock group formed in 1990 in Larvik , Norway . Originally called No Limits , they were somewhat similar in sound to The Bangles . They released an album in 1994 in Norway and Japan , entitled When You 're A Tuesday Girl , under the name The Tuesday Girls and with Jeanette Heidenstrøm as vocalist . After reconfiguring to include singer Laila Samuelsen and drummer Linda Gustafsson , they changed their name to The Tuesdays and signed with Arista in 1997 . Their self - titled album had some commercial success , especially the single `` It 's Up To You '' . Their follow - up album was rejected by Arista , and the group split up . Former lead singer Laila Samuelsen released a solo album in 2002 and is still involved in writing music .  - The Bangles is an American pop rock band that formed in Los Angeles in 1981, scoring several hit singles as that decade continued. The band's hits include "Walk Like an Egyptian", "Billboard" magazine's number-one single of 1987, as well as "Manic Monday", "Hazy Shade of Winter", and their 1989 number-one single "Eternal Flame".    What is the relationship between 'the tuesdays' and 'band'?
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The answer is:
instance of


Problem: Given the question: Information:  - PKP Group (pl: "Grupa PKP") is a Polish conglomerate founded in 2001 from the former single national rail operator, Polskie Koleje Pastwowe. The purpose of this change was to match European Union directives of dividing transport service from rail system management and founding separate companies able to sell their service outside the rail business.  - EW90 is the name for German Reichsbahn ET 165 electric multiple units working for Polish State Railways ( PKP ) after World War II.  - An electric multiple unit or EMU is a multiple unit train consisting of self-propelled carriages, using electricity as the motive power. An EMU requires no separate locomotive, as electric traction motors are incorporated within one or a number of the carriages. Most EMUs are used for passenger trains, but some have been built or converted for specialised non-passenger roles, such as carrying mail or luggage, or in departmental use, for example as de-icing trains. An EMU is usually formed of two or more semi-permanently coupled carriages, but electrically powered single-unit railcars are also generally classed as EMUs.  - The European Union (EU) is a political and economic union of member states that are located primarily in Europe. It has an area of , and an estimated population of over 510 million. The EU has developed an internal single market through a standardised system of laws that apply in all member states. EU policies aim to ensure the free movement of people, goods, services, and capital within the internal market, enact legislation in justice and home affairs, and maintain common policies on trade, agriculture, fisheries, and regional development. Within the Schengen Area, passport controls have been abolished. A monetary union was established in 1999 and came into full force in 2002, and is composed of 19 EU member states which use the euro currency.  - The company was founded when the former "" state-owned operator was divided into several units based on the requirements laid down by the European Union. PKP SA is the dominant company in PKP Group collective that resulted from the split, and maintains in 100% share control, being fully responsible for management of all of the other PKP Group component companies. The group's organisations are dependent upon PKP SA, but proposals for privatisation have been made.    What is the relationship between 'pkp class ew90' and 'locomotive'?
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The answer is:
subclass of