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": ""}
     |P  1536196   3E1 CAV.  610 rMGb$    46[ ruiaceae    P.P > meghalaya     Dg?  hedyotis ovatifolia Hedyotis -rL0,   Forest edge +     thakur rup chamd utp6y  ri-bhoi * ViF   6@g p 1682a OVATIFOLIA H  
{"catalogNumber": "1536196", "order": "", "family": "Rubiaceae", "scientificName": "Hedyotis ovatifolia", "scientificNameAuthorship": "Cav.", "genus": "Hedyotis", "subgenus": "", "specificEpithet": "ovatifolia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Thakur Rup Chand", "recordNumber": "1682a", "verbatimEventDate": "", "habitat": "Forest edge", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Meghalaya", "county": "Ri-Bhoi", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "610", "maximumElevationInMeters": ""}