Task: Error-Detect (source dataset: Relational-Tables)

Task: 
You are given a column of data from a table. Your job is to examine each value in the column, and identify if there is any clear data error in the column. An data error in the context of the column, can be values that are misspelled (typos), values that are formatted incorrectly, or values that are semantically incompatible with the rest of the column, etc., such that we can determine without ambiguity that such values are errors in the column. 

Since real-world data can vary widely in meaning and format, if you are uncertain whether a value is an error, please do not mark it as one. Only flag a value if you are confident that it is clearly a data error.

No explanation and return the final answer as a JSON object, {"obvious_error": "<CELL>"}. If you detect no error in the data, return {"obvious_error": null}.

Column:
| productcode   |
|:--------------|
| be-2349       |
| be-2908       |
| bl-2036       |
| ca-5965       |
| ca-6738       |
| ca-7457       |
| cb-2903       |
| cn-6137       |
| cr-7833       |
| cr-9981       |
| cs-2812       |
| dc-8732       |
| dc-9824       |
| dt-2377       |
| ec-m092       |
| ec-r098       |
| ec-t209       |
| fe-3760       |
| fh-2981       |
| fw-1000       |
| fw-1200       |
| fw-1400       |
| fw-3400       |
| fw-3800       |
| fw-5160       |
| fw-5800       |
| fw-7160       |
| fw-9160       |
| fc-3654       |
| fc-3982       |
| fl-2301       |
| gp-0982       |
| gt-0820       |
| gt-1209       |
| gt-2908       |
| hj-1213       |
| hj-1220       |
| hj-1420       |
| hj-1428       |
| hj-3410       |
| hj-3416       |
| hj-3816       |
| hj-3824       |
| hj-5161       |
| hj-5162       |
| hj-5811       |
| hj-5818       |
| hj-7161       |
| hj-7162       |
| hj-9080       |
| hj-9161       |
| hn-1024       |
| hn-1032       |
| hn-1213       |
| hn-1220       |
| hn-1224       |
| hn-1420       |
| hn-1428       |
| hn-3410       |
| hn-3416       |
| hn-3816       |
| hn-3824       |
| hn-4402       |
| hn-5161       |
| hn-5162       |
| hn-5400       |
| hn-5811       |
| hn-5818       |
| hn-6320       |
| hn-7161       |
| hn-7162       |
| hn-8320       |
| hn-9161       |
| hn-9168       |
| ht-2981       |
| ht-8019       |
| hu-6280       |
| hu-8998       |
| kw-4091       |
| le-1000       |
| le-1200       |
| le-1201       |
| le-1400       |
| le-3800       |
| le-5160       |
| le-6000       |
| le-7160       |
| le-8000       |
| li-1000       |
| li-1200       |
| li-1201       |
| li-1400       |
| li-3800       |
| li-5160       |
| li-5800       |
| li-6000       |
| li-7160       |
| li-8000       |
| lj-1213       |
| lj-1220       |
| lj-1420       |
| lj-1428       |
| lj-3410       |
| lj-3416       |
| lj-3816       |
| lj-3824       |
| lj-5161       |
| lj-5162       |
| lj-5811       |
| lj-5818       |
| lj-7161       |
| lj-7162       |
| lj-9080       |
| lj-9161       |
| ln-1024       |
| ln-1032       |
| ln-1213       |
| ln-1220       |
| ln-1224       |
| ln-1420       |
| ln-1428       |
| ln-3410       |
| ln-3416       |
| ln-3816       |
| ln-3824       |
| ln-4400       |
| ln-5161       |
| ln-5162       |
| ln-5400       |
| ln-5811       |
| ln-5818       |
| ln-6320       |
| ln-7161       |
| ln-7162       |
| ln-8320       |
| ln-9080       |
| ln-9161       |
| lr-2398       |
| lr-8520       |
| lw-1000       |
| lw-1200       |
| lw-1201       |
| lw-1400       |
| lw-3400       |
| lw-3800       |
| lw-4000       |
| lw-5160       |
| lw-5800       |
| lw-6000       |
| lw-7160       |
| lw-8000       |
| lw-9160       |
| ma-7075       |
| mb-2024       |
| mb-6061       |
| mp-2066       |
| mp-2503       |
| mp-4960       |
| ms-0253       |
| ms-1256       |
| ms-1981       |
| ms-2259       |
| ms-2341       |
| ms-2348       |
| ms-6061       |
| mt-1000       |
| ni-4127       |
| ni-9522       |
| pa-187b       |
| pa-361r       |
| pa-529s       |
| pa-632u       |
| pa-823y       |
| pb-6109       |
| ra-2345       |
| ra-7490       |
| rf-9198       |
| rm-m464       |
| rm-m692       |
| rm-m823       |
| rm-r436       |
| rm-r600       |
| rm-r800       |
| rm-t801       |
| sa-m198       |
| sa-m237       |
| sa-m687       |
| sa-r127       |
| sa-r430       |
| sa-r522       |
| sa-t467       |
| sa-t612       |
| sa-t872       |
| sd-2342       |
| sd-9872       |
| sh-4562       |
| sh-9312       |
| sk-9283       |
| sl-0931       |
| sm-9087       |
| sp-2981       |
| sr-2098       |
| ss-2985       |
| st-9828       |
| to-2301       |
| tp-0923       |
| rc-0291       |
| fr-r92b-58    |
| fr-r92r-58    |
| fr-r92r-62    |
| fr-r92r-44    |
| fr-r92r-48    |
| fr-r92r-52    |
| fr-r92r-56    |
| fr-r38b-58    |
| fr-r38b-60    |
| fr-r38b-62    |
| fr-r38b-44    |
| fr-r38b-48    |
| fr-r38b-52    |
| fr-m94s-42    |
| fr-m94s-46    |
| fr-m94b-42    |
| fr-m94b-46    |
| fr-m94b-38    |
| fr-m94s-38    |
| hb-m243       |
| hb-m763       |
| hb-m918       |
| hb-r504       |
| hb-r720       |
| hb-r956       |
| fr-r72y-38    |
| fr-r72y-40    |
| fr-r72y-42    |
| fr-r72y-44    |
| fr-r72y-48    |
| fr-r92b-62    |
| fr-r92b-44    |
| fr-r92b-48    |
| fr-r92b-52    |
| fr-t98y-60    |
| fr-t67y-62    |
| fr-t98y-46    |
| fr-t98y-50    |
| fr-t98y-54    |
| fr-t98u-46    |
| fr-t98u-50    |
| fr-t98u-54    |
| fr-t98u-60    |
| rd-2308       |
| fr-t67u-50    |
| fr-t67u-54    |
| fr-t67u-58    |
| fr-t67u-62    |
| fr-t67y-44    |
| fr-t67y-50    |
| fr-t67y-54    |
| fr-t67y-58    |
| fr-t67u-44    |
| fr-m63s-40    |
| fr-m63s-42    |
| fr-m63s-46    |
| rb-9231       |
| se-m236       |
| se-m798       |
| se-m940       |
| se-r581       |
| se-r908       |
| se-r995       |
| se-t312       |
| se-t762       |
| se-t924       |
| fr-m21s-42    |
| fr-m21s-44    |
| fr-m21s-48    |
| fr-m21s-52    |
| fr-m21b-42    |
| fr-m21b-44    |
| fr-m21b-48    |
| fr-m21b-52    |
| pd-m282       |
| pd-m340       |
| pd-m562       |
| pd-r347       |
| pd-r563       |
| pd-r853       |
| pd-t852       |
| fr-m63s-38    |
| fr-m21b-40    |
| fr-m21s-40    |
| fd-2342       |
| hb-t721       |
| hb-t928       |
| fb-9873       |
| cs-4759       |
| cs-6583       |
| cs-9183       |
| ch-0234       |
| bb-7421       |
| bb-8107       |
| bb-9108       |
| hl-u509-r     |
| hl-u509       |
| hl-u509-b     |
| ca-1098       |
| lj-0192-s     |
| lj-0192-m     |
| lj-0192-l     |
| lj-0192-x     |
| bk-m68s-38    |
| bk-m68s-42    |
| bk-m68s-46    |
| bk-m68b-38    |
| bk-m68b-42    |
| bk-m68b-46    |
| bk-r89r-58    |
| bk-r89b-44    |
| bk-r89b-48    |
| bk-r89b-52    |
| bk-r89b-58    |
| bk-r64y-38    |
| bk-r64y-40    |
| bk-r64y-42    |
| bk-r64y-44    |
| bk-r64y-48    |
| gl-h102-s     |
| gl-h102-m     |
| gl-h102-l     |
| ve-c304-s     |
| ve-c304-m     |
| ve-c304-l     |
| sh-w890-s     |
| sh-w890-m     |
| sh-w890-l     |
| wb-h098       |
| bc-m005       |
| bc-r205       |
| pk-7098       |
| so-r809-m     |
| so-r809-l     |
| ra-h123       |
| cl-9009       |
| fe-6654       |
| st-1401       |
| hy-1023-70    |
| sj-0194-s     |
| sj-0194-m     |
| sj-0194-l     |
| sj-0194-x     |
| tt-m928       |
| tt-r982       |
| tt-t092       |
| ti-m267       |
| ti-m602       |
| ti-m823       |
| ti-r092       |
| ti-r628       |
| ti-r982       |
| ti-t723       |
| bk-t44u-60    |
| bk-t79y-46    |
| bk-t79y-50    |
| bk-t79y-54    |
| bk-t79y-60    |
| bk-t18u-54    |
| bk-t18u-58    |
| bk-t18u-62    |
| bk-t18y-44    |
| bk-t18y-50    |
| bk-t18y-54    |
| bk-t18y-58    |
| bk-t18y-62    |
| bk-t79u-46    |
| bk-t79u-50    |
| bk-t79u-54    |
| bk-t79u-60    |
| bk-t44u-46    |
| bk-t44u-50    |
| bk-t44u-54    |
| bk-r79y-40    |
| bk-r79y-42    |
| bk-r79y-44    |
| bk-r79y-48    |
| bk-r19b-58    |
| bk-t18u-44    |
| bk-t18u-50    |
| bk-m38s-38    |
| bk-m38s-40    |
| bk-m38s-42    |
| bk-m38s-46    |
| bk-m18s-40    |
| bk-m18s-42    |
| bk-m18s-44    |
| bk-m18s-48    |
| bk-m18s-52    |
| bk-m18b-40    |
| bk-m18b-42    |
| bk-m18b-44    |
| bk-m18b-48    |
| bk-m18b-52    |
| bk-r19b-44    |