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": ""}
  4 MERCURIALIS     FLW In shady places with a little humidity SPAIN k    *cH = 424    ^@]x) SAN SALVADOR   annua *i#bu     ( MARA EDER   8U La Coruna  shN galicia  hV mercurialis annua   Euphorbiaceae 5.C   1642847 b  1972-05 +u  malpighiales 1a  L.X l 
{"catalogNumber": "1642847", "order": "Malpighiales", "family": "Euphorbiaceae", "scientificName": "Mercurialis annua", "scientificNameAuthorship": "L.", "genus": "Mercurialis", "subgenus": "", "specificEpithet": "annua", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Mara Eder", "recordNumber": "424", "verbatimEventDate": "1972-05", "habitat": "In shady places with a little humidity", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Spain", "stateProvince": "Galicia", "county": "La Coruna", "municipality": "", "locality": "San Salvador", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}