operation of his , 19_PSA_028_005 , operation of his , 23_ISA_05_12 ,
 operation of his hands , 19_PSA_028_005 , operation of his hands , 23_ISA_05_12 ,
 the operation of , 19_PSA_028_005 , the operation of , 23_ISA_05_12 ,
 the operation of his , 19_PSA_028_005 , the operation of his , 23_ISA_05_12 ,