1723
The results showed that Pb ( 2 + ) increased [ Ca ( 2 + ) ] ( i ) and decreased [ Ca ( 2 + ) ] ( ER ) linearly in a time - and concentration - dependant manner , and Pb ( 2 + ) addition after the applying of a ryanodine receptor ( RyR ) antagonist and an inositol - 1 , 4 , 5 - triphosphate receptor ( IP ( 3 ) R ) antagonist did not increase [ Ca ( 2 + ) ] ( i ) .
 Chemical: Pb ( 2 + ); Chemical: Ca ( 2 + ); Chemical: Ca ( 2 + ); Chemical: Pb ( 2 + ); Chemical: ryanodine; Chemical: inositol - 1 , 4 , 5 - triphosphate; Chemical: Ca ( 2 + )
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: Pb ( 2 + ); Chemical: Ca ( 2 + ); Chemical: Ca ( 2 + ); Chemical: Pb ( 2 + ); Chemical: ryanodine; Chemical: inositol - 1 , 4 , 5 - triphosphate; Chemical: Ca ( 2 + )