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": ""}
     CONTACT UM HERBARIU wx:~w  IPOMOEA HEDERIFOLIA MxHNh   oi robert merill king  w Solanales  1299248 YX 8  Convolvulaceae ,4Hz     yZv 3810   *s hederifolia IPOMOEA v    mexico NJl   V L.  TAMAULIPAS u*  1961-02-18 X   
{"catalogNumber": "1299248", "order": "Solanales", "family": "Convolvulaceae", "scientificName": "Ipomoea hederifolia", "scientificNameAuthorship": "L.", "genus": "Ipomoea", "subgenus": "", "specificEpithet": "hederifolia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Robert Merill King", "recordNumber": "3810", "verbatimEventDate": "1961-02-18", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Tamaulipas", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}