8756
Molecular dynamics simulations were performed for a planar TIP4P - Ew water surface at four temperatures in the range 268 - 300 K as well as two droplets , with radii of 1 . 92 and 4 . 14 nm at T = 273 . 15 K .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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