t800.scala:4: error: qualification is already defined as value qualification
  val qualification = false;
      ^
t800.scala:8: error: value qualification is defined twice;
  the conflicting variable qualification was defined at line 7:7
  val qualification = false;
      ^
t800.scala:12: error: variable qualification is defined twice;
  the conflicting value qualification was defined at line 11:7
  var qualification = false;
      ^
t800.scala:16: error: variable qualification is defined twice;
  the conflicting variable qualification was defined at line 15:7
  var qualification = false;
      ^
four errors found