25294
Aldehydes , trace metals and other compounds found in plastic packaging were analysed in PET - bottled water stored at different temperatures : 40 , 50 , and 60 degrees C .
 Chemical: Aldehydes; Chemical: PET
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: Aldehydes; Chemical: PET