Refactor the unstructured text into a valid JSON dictionary. The key names follow the Darwin Core Archive Standard. If a key lacks content, then insert an empty string. Fill in the following JSON structure as required: {"catalogNumber": "", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}
MEXICO -   a G-576   r   Poales   !?!x 24.0167   R. Reeves & J. Morrow W   (L.) MEZ EX EKMAN V4?_c   X@UG] 1953-09-07    xf!&@ VICTORIA DE DURANGO; S OF DURANGO   <. 11+20556   insularis $#It<    %+h1& digitaria     TeV DIGITARIA INSULARIS DURANGO bp7 
{"catalogNumber": "1120556", "order": "Poales", "family": "", "scientificName": "Digitaria insularis", "scientificNameAuthorship": "(L.) Mez ex Ekman", "genus": "Digitaria", "subgenus": "", "specificEpithet": "insularis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "R. Reeves & J. Morrow", "recordNumber": "G-576", "verbatimEventDate": "1953-09-07", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Durango", "county": "", "municipality": "", "locality": "Victoria de Durango; S of Durango", "decimalLatitude": "24.0167", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}