list(tau = structure(.Data = c(0.1,0,0,0.1), .Dim = c(2,2)),
		Y = structure(
				.Data = c(NA,NA,
				               NA,NA,
				               NA,NA,
				              NA, NA,
				               NA, 1,
				               NA, 1,
				               NA, 1,
				               NA, 1,
				               1, NA,
				               1, NA,
				               1, NA,
				               1, NA),
				    .Dim = c(12, 2)))