23930
The increase in free silver ion - to - seed ratio ( Ag ( + ) / Ag ( 0 ) ) resulted in changes of particle shape from spherical to pseudo - spherical and minor cylindrical shape .
 Chemical: silver; Chemical: Ag ( + ); Chemical: Ag ( 0 )
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: silver; Chemical: Ag ( + ); Chemical: Ag ( 0 )