Two students from a private Summerlin school accused of assaulting a classmate during an overseas field trip entered not guilty pleas Thursday, while their attorneys raised several issues following their recent indictments. Attorneys for Dominic Kim are challenging the family court’s decision to try the 15-year-old as an adult, arguing that the state failed to charge the teen with the appropriate offense. Both Kim and Vaugn Griffith, former students at the Alexander Dawson School, were indicted on one count of possession of child sexual abuse material , while Kim also faces two counts of child abuse, neglect or endangerment. In April, prosecutors filed a superseding indictment against both boys, maintaining the same charges while consolidating the cases and naming them co-defendants. “We believe that the court abused its discretion,” said Joshua Tomsheck, who is representing Kim, along with defense attorney Joel Mann.…