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": ""}
    303819 _<L            p^ ABUNDANT IN SANDY DRAINAGE ,DITCH. ASSOCIATED SPECIES: MEDICAGO LUPULINA, SEDUM ACRE.   richard k. rabeler  |   EL 688       Q "PETALS 5, WHITE; MOST PLANTS FRUITING;"  44.732323 #p   58 UNITED STATES
{"catalogNumber": "1303819", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Richard K. Rabeler", "recordNumber": "688", "verbatimEventDate": "", "habitat": "Abundant in sandy drainage ditch. Associated species: Medicago lupulina, Sedum acre.", "occurrenceRemarks": "\"Petals 5, white; most plants fruiting;\"", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "44.732323", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}