RETRIEVE,
    CLASS      = RD,
    TYPE       = FC,
    STREAM     = LWDA,
    EXPVER     = h3f7,
    REPRES     = SH,
    LEVTYPE    = PL,
    LEVELIST   = 1000/850/700/500/400/300,
    PARAM      = 129,
    DATE       = 20181101,
    TIME       = 0000,
    STEP       = ALL,
    ANOFFSET   = 9,
    DOMAIN     = G,
    TARGET     = data.reference 