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Herein , we highlight for the first time a universal in - plane coassembly process for the design and synthesis of transition - metal chalcogenide - alkylamine inorganic - organic hybrid nanosheets with atomic thickness .
 Chemical: transition - metal chalcogenide - alkylamine
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: transition - metal chalcogenide - alkylamine