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": ""}
 mexicana ~O Y  mays c    N 161   zea mays subsp. mexicana %xU    ] POACEAE   & ( (schrad.) iltis subsp. <<zO8       l_ Zea  Contact UM Herbarium Zu     .h` MEXICO    Eq&5 1977-09-18   `|D poales 1131790 ^Pz  H. ILTIS & J. DOEBLEY Q  
{"catalogNumber": "1131790", "order": "Poales", "family": "Poaceae", "scientificName": "Zea mays subsp. mexicana", "scientificNameAuthorship": "(Schrad.) Iltis", "genus": "Zea", "subgenus": "", "specificEpithet": "mays", "verbatimTaxonRank": "subsp.", "infraspecificEpithet": "mexicana", "identifiedBy": "", "recordedBy": "H. Iltis & J. Doebley", "recordNumber": "161", "verbatimEventDate": "1977-09-18", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}