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": ""}
   2m 14750  polyrhiza !s?V     IQUITOS, IN A R|IVULET 5b     mk no data   Erik Asplund x/    spirodela i   7/fl LORETO    g=fu PERU 1940-11-27 fp    Alsmatales  o+<W    LH   araceae
{"catalogNumber": "", "order": "Alismatales", "family": "Araceae", "scientificName": "", "scientificNameAuthorship": "", "genus": "Spirodela", "subgenus": "", "specificEpithet": "polyrhiza", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Erik Asplund", "recordNumber": "14750", "verbatimEventDate": "1940-11-27", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Peru", "stateProvince": "Loreto", "county": "no data", "municipality": "", "locality": "Iquitos, in a rivulet", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}