[{"cw_etype": "CWConstraint", "eid": 101, "value": "{\"msg\": null, \"values\": [\"ERQLExpression\", \"RRQLExpression\"]}", "creation_date": "2011/12/01 14:51:33", "modification_date": "2011/12/01 14:51:33", "cwuri": "http://beta.logilab.fr101"}]