18 Person1 PRESENT Person2 PRESENT Person4 NOT PRESENT Person5 PRESENT Person7 NOT PRESENT Person9 PRESENT Person11 NOT PRESENT Person12 PRESENT Person14 PRESENT Person16 NOT PRESENT Person17 NOT PRESENT Person19 PRESENT Person22 NOT PRESENT Person23 PRESENT Person25 PRESENT Person27 PRESENT Person28 PRESENT Person31 PRESENT 15 Person0:Person1,Person2 Person3:Person4,Person5 Person6:Person7,Person3 Person8:Person1,Person9 Person10:Person11,Person12 Person13:Person14,Person4 Person15:Person16,Person17 Person18:Person12,Person19 Person20:Person13,Person15 Person21:Person22,Person23 Person24:Person3,Person25 Person26:Person27,Person28 Person29:Person19,Person0 Person30:Person31,Person6 Person32:Person3,Person14