Shazad Rehman has been jailed for 18 and a half years. Bilal Hussain has been jailed for 17 and a half years.
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Skiers and snowboarders from the Calendar region are targeting success for Team GB at the Winter Olympics in South Korea next year.
Detectives say Samantha Davies, 16, and Lauren Johnson, 17, are believed to be in West Yorkshire.
The 43-year-old man pleaded guilty to 11 offences at Sheffield Crown Court today