// first column: train/test set indicator
// second column: source file
// third and fourth column: adjacent files in a thread (correct answers)
test	1858	1859	
test	261	5	
test	187	197	
test	488	489	
test	1840	1844	
train	360	363	357	
test	2317	2318	
test	422	423	
test	1846	1872	
test	392	397	
test	1740	1842	1737	
test	265	270	
test	1978	1982	
test	1903	1928	
train	3014	56	
train	417	418	415	
test	1467	1468	
test	3044	3048	
test	1945	1947	
train	2316	2321	
train	3064	3125	
test	1178	1186	
test	1279	1281	
test	1916	1917	
test	2273	2275	
train	1665	1666	
test	1607	1608	
train	354	355	
train	483	485	
train	17	15	
train	1234	1236	
test	1092	1093	
test	37	3124	
test	1176	1177	
test	2366	2373	
test	1253	1255	
train	243	245	
train	1377	1379	
train	517	518	
test	1923	2036	
test	1276	1277	
test	2044	2059	
test	595	600	
test	491	492	
test	1588	1592	
test	1534	1731	
test	29	3188	
test	1803	1815	
test	1612	1618	
test	1732	1734	
test	1653	1654	
train	1373	1375	
train	1980	1983	
test	1800	1804	
train	1994	2004	1872	
train	464	465	460	
train	1399	1401	
train	1018	1058	1000	
test	2660	2665	
train	1816	1819	
test	250	252	
train	534	535	
train	1939	1941	
test	515	516	
test	566	570	
test	1925	1998	
train	1308	1309	
test	1809	1810	
test	1149	1157	
test	336	346	
test	1317	1319	
train	1516	1518	
train	1300	1515	
test	1095	1101	
test	2443	2448	
train	1911	1912	
test	47	3073	
train	1933	1936	
test	2188	2191	
test	1845	1878	
test	2186	2187	
