5575
1 - Methylindene ( 130 amu ) , indene ( 116 amu ) , phenylallene ( 116 amu ) , and 1 - phenyl - 1 - methylacetylene ( 116 amu ) are synthesized upon reaction of the phenyl radical with three C ( 4 ) H ( 6 ) isomers : 1 , 2 - butadiene ( H ( 2 ) CCCH ( CH ( 3 ) ) ) , 1 - butyne ( HCCC ( 2 ) H ( 5 ) ) , and 2 - butyne ( CH ( 3 ) CCCH ( 3 ) ) ; these C ( 4 ) H ( 6 ) isomers can be formed from 1 , 3 - butadiene via hydrogen atom assisted isomerization reactions or via thermal rearrangements of 1 , 3 - butadiene involving hydrogen shifts in the high temperature chemical reactor .
 Chemical: 1 - Methylindene; Chemical: indene; Chemical: phenylallene; Chemical: 1 - phenyl - 1 - methylacetylene; Chemical: phenyl; Chemical: C ( 4 ) H ( 6 ); Chemical: 1 , 2 - butadiene; Chemical: H ( 2 ) CCCH ( CH ( 3 ) ); Chemical: 1 - butyne; Chemical: HCCC ( 2 ) H ( 5 ); Chemical: 2 - butyne; Chemical: CH ( 3 ) CCCH ( 3 ); Chemical: C ( 4 ) H ( 6 ); Chemical: 1 , 3 - butadiene; Chemical: hydrogen; Chemical: 1 , 3 - butadiene; Chemical: hydrogen
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: 1 - Methylindene; Chemical: indene; Chemical: phenylallene; Chemical: 1 - phenyl - 1 - methylacetylene; Chemical: phenyl; Chemical: C ( 4 ) H ( 6 ); Chemical: 1 , 2 - butadiene; Chemical: H ( 2 ) CCCH ( CH ( 3 ) ); Chemical: 1 - butyne; Chemical: HCCC ( 2 ) H ( 5 ); Chemical: 2 - butyne; Chemical: CH ( 3 ) CCCH ( 3 ); Chemical: C ( 4 ) H ( 6 ); Chemical: 1 , 3 - butadiene; Chemical: hydrogen; Chemical: 1 , 3 - butadiene; Chemical: hydrogen