22969
As phi D exceeds critical aggregation concentration , finite sized clusters are mainly formed with columnar structure in the pretransition regime , similar to micellization associated with typical surfactants .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None