Dataset {
    Int32 occurence_id[occurence_id = 42066];
    Grid {
     ARRAY:
        Float64 int_doccurence_id[occurence_id = 42066];
     MAPS:
        Int32 occurence_id[occurence_id = 42066];
    } int_doccurence_id;
} int_doccurence_id;