7221
Water diffusion slows as the sarin content increases despite the overall increase in solvent content , which suggests that sarin and water have somewhat different pathways through the segregated membrane .
 Chemical: sarin; Chemical: sarin
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: sarin; Chemical: sarin