6211
Aqueous solutions with various pH ( 2 , 3 , 4 , 5 , and 6 ) and fruit juices ( apple , pear , grapefruit , orange , tangerine , kiwifruit , and lemon ) were coloured with PSPAs .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None