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": ""}
1981-04-15         VENEZUELA |   HETEROPTERYS ,e3   =/JQ Francisco Guanchez  atures M3 Z;   amazonas 7Q     HETEROPTERYS MACRAOENA     Contact U Herbarium gm2     1531191 Arx   ^M Malpighiaceae MACRADENA dBU*  MALPIGHIALES `q_mp  
{"catalogNumber": "1531191", "order": "Malpighiales", "family": "Malpighiaceae", "scientificName": "Heteropterys macradena", "scientificNameAuthorship": "", "genus": "Heteropterys", "subgenus": "", "specificEpithet": "macradena", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Francisco Guanchez", "recordNumber": "", "verbatimEventDate": "1981-04-15", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Venezuela", "stateProvince": "Amazonas", "county": "Atures", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}