Unable to load event map

Hi,
I extended /service/ip class.
Mapped events to it in pin_event_map file.

But I am unable to load the file. getting below error :

D Mon Jun 17 09:02:18 2013  <BRM_URL>  load_event_map:14608  pcm_tbls.c(21):313 1:<machine>:<program>:0:0:0:0:0
        libpcmext.so Library initialized
D Mon Jun 17 09:02:18 2013  <BRM_URL>  load_event_map:14608  pcm_tbls.c(21):316 1:<machine>:<program>:0:0:0:0:0
        PCMEXT initialized with 0 function failures
E Mon Jun 17 09:02:18 2013  <BRM_URL>  load_event_map:14608  load_event_map.c:466 1:<machine>:<program>:0:0:0:0:0
        Error in pin_event_map file at line 83 value of <unit> must be in (month, day, week, year)
        <location=PIN_ERRLOC_DM:4 class=PIN_ERRCLASS_SYSTEM_DETERMINATE:1 errno=PIN_ERR_BAD_ARG:4>