Simplify the following text for a Grade 14 native English-speaking person.
Original: Gaudian , badly but not fatally injured , was arrested and was sentenced on May 24 , 1989 , to an imprisonment of three years by the Pankow district court for attempted illegal border-crossing of the first degree ( `` versuchten ungesetzlichen GrenzÃ 1\/4 bertritts im schweren Fall '' ) .
Simplified: Gaudian was badly injured , and was arrested and was sentenced on 24 May 1989 to imprisonment for three years by the Pankow district court for trying illegally to cross the border ( `` versuchten ungesetzlichen GrenzÃ 1\/4 bertritts im schweren Fall '' ) .