{
    "0": {
        "train": ["chr11", "chr12", "chr13", "chr14", "chr15", "chr16", "chr17", "chr18", "chr19", "chr2", "chr20", "chr21", "chr22", "chr3", "chr4", "chr5", "chr6", "chr7", "chr9", "chrX"], 
        "val": ["chr10", "chr8"], 
        "test": ["chr1"]
    }
}