user: 블라인드 가디언에 대해 설명해 줘.

gpt: **블라인드 가디언**은 독일의 헤비 메탈 밴드이다.

user: 구성원은?

gpt: ImageSize = width:800 height:auto barincrement:18
PlotArea = left:105 bottom:125 top:10 right:5
Alignbars = justify
DateFormat = dd/mm/yyyy
Period = from:01/01/1984 till:
TimeAxis = orientation:horizontal format:yyyy
Legend = orientation:vertical position:bottom
ScaleMajor = increment:5 start:1984
ScaleMinor = increment:1 start:1985

Colors =
 id:vox value:red legend:Lead_vocals
 id:bvs value:pink legend:Backing_vocals
 id:lead value:teal legend:Lead_guitar
 id:gee value:brightgreen legend:Rhythm_guitar
 id:bass value:blue legend:Bass
 id:drum value:orange legend:Drums
 id:keys value:purple legend:Keyboards
 id:wood value:gray legend:Woodwinds
 id:sesh value:yellow legend:Session_member
 id:Lines value:black legend:Studio_album
 id:bars value:gray

BackgroundColors = bars:bars

BarData =
 bar:hk text:"Hansi Kürsch"
 bar:tk text:"Thomas Kelleners"
 bar:ao text:"André Olbrich"
 bar:md text:"Markus Dörk"
 bar:ct text:"Christoph Theissen"
 bar:ms text:"Marcus Siepen"
 bar:oh text:"Oliver Holzwarth"
 bar:bc text:"Barend Courbois"
 bar:ts text:"Thomas Stauch"
 bar:hp text:"Hans-Peter Frey"
 bar:ah text:"Alex Holzwrath"
 bar:fe text:"Frederik Ehmke"
 bar:mw text:"Mathias Wiesner"
 bar:mz text:"Marc Zee"
 bar:mi text:"Michael 'Mi' Schüren"
 bar:pb text:"Pat Bender"
 bar:mu text:"Matthias Ulmer"
 bar:th text:"Thomas Hackmann"
 bar:rk text:"Rolf Köhler"
 bar:bk text:"Billy King"
 bar:os text:"Olaf Senkbeil"

PlotData=
 width:11
 bar:hk from:01/01/1984 till:01/06/1984 color:vox
 bar:hk from:01/09/1984 till:end color:vox
 bar:tk from:01/06/1984 till:01/09/1984 color:vox

 bar:ao from:01/01/1984 till:end color:lead
 bar:ao from:01/01/1984 till:end color:bvs width:3
 bar:md from:01/01/1984 till:01/06/1986 color:gee
 bar:ct from:01/06/1986 till:01/01/1987 color:gee
 bar:ms from:01/01/1987 till:end color:gee
 bar:ms from:01/01/1987 till:end color:bvs width:3

 bar:hk from:01/06/1984 till:01/09/1984 color:bass
 bar:mw from:01/01/1992 till:01/01/1994 color:bass width:7
 bar:oh from:01/01/1997 till:01/01/2011 color:bass
 bar:bc from:01/01/2015 till:end color:bass

 bar:ts from:01/01/1984 till:01/06/1986 color:drum
 bar:ts from:01/01/1987 till:03/04/2005 color:drum
 bar:hp from:01/06/1986 till:01/01/1987 color:drum
 bar:ah from:01/01/2002 till:01/01/2003 color:drum
 bar:fe from:14/07/2005 till:end color:drum

 bar:mw from:01/01/1989 till:01/01/2002 color:keys
 bar:mz from:01/01/1993 till:01/01/1994 color:keys
 bar:mi from:01/01/1997 till:end color:keys
 bar:pb from:01/01/2002 till:01/01/2006 color:keys
 bar:mu from:01/01/2007 till:end color:keys

 bar:th from:01/01/1990 till:end color:bvs
 bar:th from:01/01/1990 till:end color:sesh width:3
 bar:rk from:01/01/1990 till:01/01/2007 color:bvs
 bar:rk from:01/01/1990 till:01/01/2007 color:sesh width:3
 bar:bk from:01/01/1992 till:end color:bvs
 bar:bk from:01/01/1992 till:end color:sesh width:3
 bar:os from:01/01/1997 till:end color:bvs
 bar:os from:01/01/1997 till:end color:sesh width:3

 width:2.5
 bar:hk from:01/01/1984 till:01/01/1997 color:bass
 bar:oh from:01/01/1997 till:01/01/2011 color:sesh
 bar:bc from:01/01/2015 till:end color:sesh
 bar:ah from:01/01/2002 till:01/01/2003 color:sesh
 bar:fe from:14/07/2005 till:end color:wood
 bar:mw from:01/01/1989 till:01/01/2002 color:sesh
 bar:mz from:01/01/1993 till:01/01/1994 color:sesh
 bar:mi from:01/01/1997 till:end color:sesh
 bar:pb from:01/01/2002 till:01/01/2006 color:sesh
 bar:mu from:01/01/2007 till:end color:sesh

LineData =
 color:black layer:back
 at:18/05/1988
 at:25/10/1989
 at:03/10/1990
 at:29/06/1992
 at:05/04/1995
 at:27/04/1998
 at:04/03/2002
 at:01/09/2006
 at:30/07/2010
 at:30/01/2015
 at:01/11/2019