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": ""}
 Frequent on moist disturbed ground. z R+6    44.967387 u+F     l. rWx8_        460       Rumex obtusifolius <T6VX   united states E    2D ANTRIM     a vy obtusifolius
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Rumex obtusifolius", "scientificNameAuthorship": "L.", "genus": "", "subgenus": "", "specificEpithet": "obtusifolius", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "460", "verbatimEventDate": "", "habitat": "Frequent on moist disturbed ground.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Antrim", "municipality": "", "locality": "", "decimalLatitude": "44.967387", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}