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": ""}
   medicgo polymorpha  S   (Ok mexico  sw  FABALES  L. $    u!+9i 1171977  -  MEDICAGO        j%> T Fabaceae  pE9W v.e. rudd   ) polymorpha 1964-08-03    Contact UM Herbarium  Z   .  y7 6756      4U Dennis E. Breedlove
{"catalogNumber": "1171977", "order": "Fabales", "family": "Fabaceae", "scientificName": "Medicago polymorpha", "scientificNameAuthorship": "L.", "genus": "Medicago", "subgenus": "", "specificEpithet": "polymorpha", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "V.E. Rudd", "recordedBy": "Dennis E. Breedlove", "recordNumber": "6756", "verbatimEventDate": "1964-08-03", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}