3336
We have also used five responsive GFP reporters to investigate the toxicity of soil pore water from two agricultural sites in south - east Spain , designated P74 ( used for cauliflower production , but significantly metal contaminated ) and P73 ( used for growing lettuce , but with only background levels of metals ) .
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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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