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": ""}
 UV 2999   1998-07-21 O7x  United States 1  COOK [f      9: Minnesota  Poales v:    POA PALUSTRIS 6= %      `I Poa 1451876 iV    : ROADSIDE; EDGE OF SAND DITCH ?AND WETLAND | CALAMAGROSTIS CANADENSIS; CAREX ROSTRATA l. Vxu    eiY^ palustris   Lyndon B.Gerdes J*EF6  
{"catalogNumber": "1451876", "order": "Poales", "family": "", "scientificName": "Poa palustris", "scientificNameAuthorship": "L.", "genus": "Poa", "subgenus": "", "specificEpithet": "palustris", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Lyndon B. Gerdes", "recordNumber": "2999", "verbatimEventDate": "1998-07-21", "habitat": "Roadside; edge of sandy ditch and wetland | Calamagrostis canadensis; Carex rostrata", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Minnesota", "county": "Cook", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}