RETRIEVE,
    CLASS      = OD,
    TYPE       = TF,
    STREAM     = ENFO,
    EXPVER     = 0001,
    REPRES     = BU,
    OBSTYPE    = 32,
    DATE       = 20060112,
    TIME       = 0000/1200,
    STEP       = 0,
    DOMAIN     = G,
    TARGET     = data.reference,
    DUPLICATES = KEEP 