{
    "comment":"Invalid biom file because it is missing a metadata field",
    "id":null,
    "format": "Biological Observation Matrix 0.9.1-dev",
    "format_url": "http://biom-format.org/documentation/format_versions/biom-1.0.html",
    "type": "OTU table",
    "generated_by": "QIIME revision 1.4.0-dev",
    "date": "2011-12-19T19:00:00",
    "rows":[
            {"id":"GG_OTU_1"},
            {"id":"GG_OTU_2", "metadata":null},
            {"id":"GG_OTU_3", "metadata":null},
            {"id":"GG_OTU_4", "metadata":null},
            {"id":"GG_OTU_5", "metadata":null}
        ],
    "columns": [
            {"id":"Sample1", "metadata":null},
            {"id":"Sample2", "metadata":null},
            {"id":"Sample3", "metadata":null},
            {"id":"Sample4", "metadata":null},
            {"id":"Sample5", "metadata":null},
            {"id":"Sample6", "metadata":null}
        ],
    "matrix_type": "dense",
    "matrix_element_type": "int",
    "shape": [5,6],
    "data":  [[0,0,4,0,0,0],
              [5,3,0,2,3,2],
              [0,0,3,4,2,0],
              [2,2,2,0,0,1],
              [0,1,1,0,0,0]]
}