With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Iron Man 3 has a completely original story.
text_B: David William `` Dave '' Laing -LRB- born 1947 -RRB- is an English writer , editor , and broadcaster , specialising in the history and development of pop and rock music .. pop. pop music. rock music. rock music. He has been a research fellow at the universities of Westminster and Liverpool .. Westminster. University of Westminster. Liverpool. University of Liverpool. Laing was editor of the monthly British music magazine Let It Rock from October 1972 to October 1973 .. Let It Rock. Let It Rock ( magazine ). His books have included The Sound of our Time -LRB- 1969 -RRB- , Buddy Holly -LRB- 1970 -RRB- , The Electric Muse  : the story of Folk into Rock -LRB- with Karl Dallas , Robin Denselow and Robert Shelton , 1975 -RRB- , and One Chord Wonders  : Power and Meaning in Punk Rock -LRB- 1985 -RRB- .. Karl Dallas. Karl Dallas. Robin Denselow. Robin Denselow. Robert Shelton. Robert Shelton ( critic ). In the mid-1970s he was co-editor of one of the first reference books on rock music , The Encyclopedia of Rock .. rock music. rock music. He co-authored , with Phil Hardy , The Faber Companion to 20th Century Popular Music -LRB- 1995 -RRB- , and co-wrote , with Sarah Davis , The Guerrilla Guide to the Music Business -LRB- 2001 -RRB- .. Phil Hardy. Phil Hardy ( journalist ). He is also an editor of the Continuum Encyclopedia of Popular Music of the World .. Laing has also written widely in music magazines and newspapers , including The Guardian .. The Guardian. The Guardian
not_related.