9466
Sarcomas of the soft tissue are a heterogeneous , rare and complex group of mesenchymal malignant tumors , accounting for less than 1 % of all adult malignancies and about 10 - 15 % of childhood cancer .
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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:
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