If one image shows an instrument made of silver and the other has an instrument made of brass or gold.
return one image ;return instrument  in  #1 ;return #2 that is made of silver ;return number of  #3 ;return if  #4 is at least one ;return other image ;return instrument  in  #6 ;return #7 that is made of brass ;return #7 that is made of gold ;return #8 , #9 ;return number of  #10 ;return if  #11 is at least one ;return if  both  #5 and #12 are true
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