26125
We find that the droplets grow through coalescence events : the average radius < R > increases logarithmically with elapsed time while the relative width sigma R / < R > of the distribution decreases as the inverse square root of < R > .
 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