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Samuel Graham , who told his family earlier that he was nervous about starting at a new school because he feared teasing about his weight problem , had been due to spend his first day at Parkway Middle School Monday , police said .
 Samuel Graham, Parkway Middle School
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 Samuel Graham, Parkway Middle School