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": ""}
 1; 4 12704    CONTACT UM HERBARIUM c       N HASTIGERA  VP (House) O'Donell   . E z ipomoea  /d# jaliscana   Mexico  ^     XY8 ipomoea hastigera var. jaliscana  Pl5 geo. b. hinton MICHOACAN ~nnV    a 1938-12-04 J.E. ECKENWALDER E Gq]    Y[ CONVOLVULACE4E 
{"catalogNumber": "", "order": "", "family": "Convolvulaceae", "scientificName": "Ipomoea hastigera var. jaliscana", "scientificNameAuthorship": "(House) O'Donell", "genus": "Ipomoea", "subgenus": "", "specificEpithet": "hastigera", "verbatimTaxonRank": "", "infraspecificEpithet": "jaliscana", "identifiedBy": "J.E. Eckenwalder", "recordedBy": "Geo. B. Hinton", "recordNumber": "12704", "verbatimEventDate": "1938-12-04", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Michoacan", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}