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": ""}
 helianthus rigidus eS    ` (ASS.) DESF.  P CONTACT UM HERBARIUM     a 4829  RIGIDUS ezNl?      -.L Canada  ASTERACEAE %   Asterales z  1978-08-03 =C:    L;?~ Helianthus      1312481 ^  
{"catalogNumber": "1312481", "order": "Asterales", "family": "Asteraceae", "scientificName": "Helianthus rigidus", "scientificNameAuthorship": "(Cass.) Desf.", "genus": "Helianthus", "subgenus": "", "specificEpithet": "rigidus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "4829", "verbatimEventDate": "1978-08-03", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}