28750
Particle density and relative humidity are shown to influence interfacial entrapment , which suggests that both sedimentation rate and evaporation rate affect the dynamic changes in the cross - sectional distribution of particles .
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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