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The results indicated that the pretreatment with 20 mg L ( - 1 ) La ( III ) could alleviate the inhibition of UV - B radiation on nitrogen assimilation in soybean seedlings .
 Chemical: La ( III ); Chemical: nitrogen
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: La ( III ); Chemical: nitrogen