7824
Median hazardous concentrations for 5 % of the species ( HC5 - 50 ) estimated by the SSDs were less accurate predictors of measured community - level no observed effect concentration than food web model - derived HC5 - 50s , albeit data were available for seven chemicals only .
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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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