<prompt> Hlanganisa amaqiniso bese uphendula lokhu: Iyiphi imboni eyinhloko yaleli dolobha elinabantu abangaba ngu-2 600 ngo-2010 elinabafundi baseMountain Valley High School njengezakhamuzi zalo?  <response>: umkhakha wokukhiqiza iphepha 