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": ""}
   `M 1950-06-01 ophiorrhiza ttcwx   p ophiorrhiza   bS8= walter n. koelz 25195 O:U L  1524 S  nagaland nShW    p %` RUBIACEAE     F0CDl Forest   ctL 1536424  3BS(  GENTIANALES India w/IU   $&ZP  kohima      
{"catalogNumber": "1536424", "order": "Gentianales", "family": "Rubiaceae", "scientificName": "Ophiorrhiza", "scientificNameAuthorship": "", "genus": "Ophiorrhiza", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Walter N. Koelz", "recordNumber": "25195", "verbatimEventDate": "1950-06-01", "habitat": "Forest", "occurrenceRemarks": "", "associatedTaxa": "", "country": "India", "stateProvince": "Nagaland", "county": "Kohima", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "1524", "maximumElevationInMeters": ""}