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": ""}
 7 Walter N. Koelz epiphyte on forest tree <DlET    TY india    $ HNUNTHA, LUSHAI HILLS  1524 LB   careyanum -  e  Mizoram y )2m    8 <h serghhip    :5g%> 1492860     U:S^_ (Hook.) Spreng.      
{"catalogNumber": "1492860", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "(Hook.) Spreng.", "genus": "", "subgenus": "", "specificEpithet": "careyanum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Walter N. Koelz", "recordNumber": "", "verbatimEventDate": "", "habitat": "Epiphyte on forest tree", "occurrenceRemarks": "", "associatedTaxa": "", "country": "India", "stateProvince": "Mizoram", "county": "Serchhip", "municipality": "", "locality": "Hmuntha, Lushai Hills", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "1524", "maximumElevationInMeters": ""}