3 4 2 BillyTheKid 0 0 Andy 10 0 John 19 0 Larry 20 0 Andy heard BillyTheKid firing before John Larry heard John firing before BillyTheKid 2 2 Andy 0 0 Beate 0 1 Andy heard Beate firing before Andy Beate heard Andy firing before Beate 3 1 Andy 0 0 Beate 0 1 Charles 1 3 Beate heard Andy firing before Charles