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": ""}
 ipomoea megapotamica ?       o 1560446   b mU- in pasture-land    bIxKM SOLANALES   f3: D. Bento Pickel BRAZIL Kg@     Iv Choisy  1933-09 D*__q    megapotamica Yp|x>      F2_ pernambuco   a#QFJ 3037 TAPERA qx 
{"catalogNumber": "1560446", "order": "Solanales", "family": "", "scientificName": "Ipomoea megapotamica", "scientificNameAuthorship": "Choisy", "genus": "", "subgenus": "", "specificEpithet": "megapotamica", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "D. Bento Pickel", "recordNumber": "3037", "verbatimEventDate": "1933-09", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Brazil", "stateProvince": "Pernambuco", "county": "Tapera", "municipality": "", "locality": "In pasture-land", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}