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He would sometimes write songs with someone in mind , for instance , " I 've Grown Accustomed To Her Face " from " My Fair Lady " was written with Rex Harrison in mind to complement his very limited vocal range .
 Rex Harrison
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Rex Harrison