sclass Scored<A> extends Var<A> {
  float score;
  
  *() {}
  *(A a, float score) { super(a); this.score = score; }
  *(A a, double score) { super(a); this.score = (float) score; }
  
  float score() { ret score; }
  
  toString {
    ret toIntPercent(score) + "%: " + str(get());
  }
}