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": ""}
1896-05-16 ^b?   JH  -87.38602 4.611217 [     DICHANTHELIUM OLIGOSANTHES %m`  1430050 <hd[  s.n. )   united states   O[S   VD$ j (Schult.) Gould L. M. UMBACH $   P[`5 OLIGOSANTHES     Dichanthelium $.`   voaM Poaceae lake [ Jb  R.R. TRACK, oN   CLARKE 7RB7  Indiana ~~C8   
{"catalogNumber": "1430050", "order": "", "family": "Poaceae", "scientificName": "Dichanthelium oligosanthes", "scientificNameAuthorship": "(Schult.) Gould", "genus": "Dichanthelium", "subgenus": "", "specificEpithet": "oligosanthes", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "L. M. Umbach", "recordNumber": "s.n.", "verbatimEventDate": "1896-05-16", "habitat": "R.R. track,", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Indiana", "county": "Lake", "municipality": "", "locality": "Clarke", "decimalLatitude": "41.611217", "decimalLongitude": "-87.38602", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}