1290
Ovarian torsion occurred in 56 . 7 % on ovaries with functional lesion , in 23 . 3 % on normal adnexa and in 20 % on ovaries with benign neoplasm .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None