[{"cw_etype": "CWConstraint", "eid": 852, "value": "{\"max\": 20, \"min\": null, \"msg\": null}", "creation_date": "2011/12/01 14:51:46", "modification_date": "2011/12/01 14:51:46", "cwuri": "http://beta.logilab.fr852"}]