8. The method of claim 7 , wherein the multiple groups comprise a grammatically erroneous sequence, a grammatically unsophisticated sequence, or grammatically sophisticated sequence.
8. The method of claim 7 , wherein the multiple groups comprise a grammatically erroneous sequence, a grammatically unsophisticated sequence, or grammatically sophisticated sequence. 11. The method of claim 8 , wherein the feedback is provided based on a count of part of speech sequences included in each of the multiple groups.