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In this study we investigated recognition by ovarian tumor associated lymphocyte ( OVTAL ), and breast tumor associated lymphocytes ( BRTAL ), of peptides corresponding to the sequence 125-135 of the Aminoenhancer of split (AES) protein .
 ovarian tumor associated lymphocyte, BRTAL, breast tumor associated lymphocytes, 125-135 of the Aminoenhancer of split (AES) protein, OVTAL
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 ovarian tumor associated lymphocyte, BRTAL, breast tumor associated lymphocytes, 125-135 of the Aminoenhancer of split (AES) protein, OVTAL