5902
The bitumen film appeared uniform with high reflectivity at a surface pressure of 18 mN . m ( - 1 ) and exhibited a coarse pebblelike interface with reduced reflectivity in the liquid condensed ( LC ) phase at higher pressures ( 18 - 35 mN . m ( - 1 ) ) .
 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