1,	test one,this is my test document number one. also checking search within phrases., "1,2,3", 
2, test two, this "is my"" test "document number two, "2,3,4",	2
3,another doc,	this "is \nanother" group,	"3,4,5",	
4,	doc number four,	this is to test groups,	"4,5,6",	4
5,	"aaa bbb ccc",	,"5,6,7", 5
