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": ""}
   juncus greenei ?0   O UNITED ST4TES JUNCACEAE =F     ! 1448689   kZ.!J juncus    N87| massachusetts    ` 1079   Om F. C. MacKeever  contact um herbarium p7    =a OakesK & Tuck.  s`[d POALES greenei HR/   
{"catalogNumber": "1448689", "order": "Poales", "family": "Juncaceae", "scientificName": "Juncus greenei", "scientificNameAuthorship": "Oakes & Tuck.", "genus": "Juncus", "subgenus": "", "specificEpithet": "greenei", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "F. C. MacKeever", "recordNumber": "1079", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Massachusetts", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}