10707
The consecutive arrangement of 2 ' - deoxy - 6 - thioguanosines ( s ( 6 ) Gs ) and 4 - thiothymidines ( s ( 4 ) Ts ) in antiparallel triplex - forming oligonucleotides ( TFOs ) considerably stabilized the resulting antiparallel triplexes with high base recognition ability by the strong stacking effects of thiocarbonyl groups .
 Chemical: 2 ' - deoxy - 6 - thioguanosines; Chemical: s ( 6 ) Gs; Chemical: 4 - thiothymidines; Chemical: s ( 4 ) Ts; Chemical: thiocarbonyl
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: 2 ' - deoxy - 6 - thioguanosines; Chemical: s ( 6 ) Gs; Chemical: 4 - thiothymidines; Chemical: s ( 4 ) Ts; Chemical: thiocarbonyl