نبيل رجب سجين رأي بحريني لن تسمعوا عنه في   القمة  العربية في تونس   طالبوا بالإفراج عنه فوراً   http      amn  st  6184Ewv3r
Determine the primary topic of the given news piece from these options: spiritual, human-rights-press-freedom, business-and-economy, sports, science-and-technology, education, environment, health, art-and-entertainment, politics. Return only the label without any explanation, justification or additional text.