6796
We explore the transport of electrons between electrodes that encase a two - dimensional array of metallic quantum dots linked by molecular bridges ( such as alpha , omega alkaline dithiols ) .
 Chemical: dithiols
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: dithiols