Passage: The analytical writing section consists of two different essays, an "issue task" and an "argument task".  The writing section is graded on a scale of 0–6, in half-point increments. The essays are written on a computer using a word processing program specifically designed by ETS. The program allows only basic computer functions and does not contain a spell-checker or other advanced features. Each essay is scored by at least two readers on a six-point holist scale.  If the two scores are within one point, the average of the scores is taken.  If the two scores differ by more than a point, a third reader examines the response.

Question: What sort of features are not included in the program?
spell-checker or other advanced features