module tb_train();reg sensor1;reg sensor2;reg sensor3;reg sensor4;reg sensor5;reg reset;reg clock;wire switch1;wire switch2;wire switch3;reg sensor13;reg sensor24;reg sensor12;wire CLOCK_50;reg dirB;reg dirA;initial begin  clock=0;  forever #5 clock=~clock;  end  initial begin#10 reset=0;#10 sensor12=00;#10 sensor12=01;#10 sensor12=10;#10 sensor12=11;#10 sensor13=00;#10 sensor13=01;#10 sensor13=10;#10 sensor13=11;#10 sensor24=00;#10 sensor13=01;#10 sensor13=10;#10 sensor13=11;#100 $finish;endtrain train(           .sensor1(sensor1),           .sensor2(sensor2),           .sensor3(sensor3),           .sensor4(sensor4),           .sensor5(sensor5),           .reset(reset),           .clock(clock),           .switch1(switch1),           .switch2(switch2),           .switch3(switch3)           );             initial begin    $fsdbDumpfile ("tb_train.fsdb");    $fsdbDumpvars ();  end  endmodule