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": ""}
5 mi. se of m ilan. dA. ?       b 1939-05-28  oaM BETTY M. ROBERTSON   [ #: 42.0279   ( Medicago lupulina   nZ united states  1346749 ]Z       lupulina K    ut>` Fabales MEDICAGO pjA     L. ff  
{"catalogNumber": "1346749", "order": "Fabales", "family": "", "scientificName": "Medicago lupulina", "scientificNameAuthorship": "L.", "genus": "Medicago", "subgenus": "", "specificEpithet": "lupulina", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Betty M. Robertson", "recordNumber": "", "verbatimEventDate": "1939-05-28", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "", "municipality": "", "locality": "5 mi. SE of Milan.", "decimalLatitude": "42.0279", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}