ISBN NUMBER@1 PERSON@1 , born PERSON@2 -LRB- April NUMBER@2 , NUMBER@3 -- October NUMBER@4 , NUMBER@5 -RRB- , was a teacher best known as the instructor and companion of PERSON@3 .

PERSON@4 -LRB- April NUMBER@2 , NUMBER@3 -- October NUMBER@4 , NUMBER@5 -RRB- was a teacher best known as the tutor of PERSON@3 .
