With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Grunge became successful commercially due partially to Soundgarden's Superunknown.
text_B: Grunge -LRB- sometimes referred to as the Seattle sound -RRB- is a subgenre of alternative rock and a subculture that emerged during the in the Pacific Northwest U.S. state of Washington , particularly in Seattle and nearby towns .. alternative rock. alternative rock. subculture. subculture. Pacific Northwest. Pacific Northwest. U.S. state. U.S. state. Washington. Washington ( state ). Seattle. Seattle. The early grunge movement revolved around Seattle 's independent record label Sub Pop and that region 's underground music scene .. Seattle. Seattle. grunge movement. #History. independent record label. independent record label. Sub Pop. Sub Pop. underground music. underground music. By the early 1990s its popularity had spread , with grunge acts appearing in California , then surfacing towards other parts of the United States and in Australia , building strong followings and signing major record deals .. Grunge became commercially successful in the early 1990s , due to releases such as Nirvana 's Nevermind , Pearl Jam 's Ten , Soundgarden 's Superunknown , Alice in Chains ' Dirt and Stone Temple Pilots ' Core .. Nirvana. Nirvana ( band ). Nevermind. Nevermind. Pearl Jam. Pearl Jam. Ten. Ten ( Pearl Jam album ). Soundgarden. Soundgarden. Superunknown. Superunknown. Alice in Chains. Alice in Chains. Dirt. Dirt ( Alice in Chains album ). Stone Temple Pilots. Stone Temple Pilots. Core. Core ( Stone Temple Pilots album ). The success of these bands boosted the popularity of alternative rock and made grunge the most popular form of rock music at the time .. alternative rock. alternative rock. rock music. rock music. Although most grunge bands had disbanded or faded from view by the late 1990s , they influenced modern rock music , as their lyrics brought socially conscious issues into pop culture and added introspection and an exploration of what it means to be true to oneself .. rock music. rock music. pop culture. pop culture. be true to oneself. Authenticity ( philosophy ). Grunge was also an influence on subsequent genres such as post-grunge and nu metal .. nu metal. nu metal. post-grunge. post-grunge. Grunge fuses elements of punk rock and heavy metal , such as the distorted electric guitar used in both genres , although some bands performed with more emphasis on one or the other .. heavy metal. heavy metal music. punk rock. punk rock. distorted. Distortion ( music ). electric guitar. electric guitar. Like these genres , grunge typically uses electric guitar , bass guitar , a drummer and a singer .. bass guitar. bass guitar. electric guitar. electric guitar. drummer. drummer. singer. singer. Grunge also incorporates influences from indie rock bands such as Sonic Youth .. indie rock. indie rock. Sonic Youth. Sonic Youth. Lyrics are typically angst-filled and introspective , often addressing themes such as social alienation , apathy , concerns about confinement , and a desire for freedom .. social alienation. social alienation. apathy. apathy. freedom. Liberty. A number of factors contributed to grunge 's decline in prominence .. During the , many grunge bands broke up or became less visible .. Nirvana 's Kurt Cobain , labeled by Time as `` the John Lennon of the swinging Northwest '' , appeared unusually tortured by success and struggled with an addiction to heroin before he committed suicide at the age of 27 in 1994 .. Nirvana. Nirvana ( band ). Kurt Cobain. Kurt Cobain. John Lennon. John Lennon
related.