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": ""}
  retroflexa ,W+    h  Abundantmats in marshes  5. 10    7C 0  Henry K. Svenson   P2  Cyperaceae nicaragua 3      4953 O    QyF~ j. jt. bruhl  (poir.) urb. Qn   Po9 eleocharis retroflexa 100 kjV  North Caribbean Coast Autonomous Region 0+   I  1558)574  
{"catalogNumber": "1558574", "order": "", "family": "Cyperaceae", "scientificName": "Eleocharis retroflexa", "scientificNameAuthorship": "(Poir.) Urb.", "genus": "", "subgenus": "", "specificEpithet": "retroflexa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "J. J. Bruhl", "recordedBy": "Henry K. Svenson", "recordNumber": "4953", "verbatimEventDate": "", "habitat": "Abundant mats in marshes", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Nicaragua", "stateProvince": "North Caribbean Coast Autonomous Region", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "10", "maximumElevationInMeters": "100"}