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": ""}
      2 Along the Toba trail north of th2e Asahan River between Toetoepan and Si Makkoek          BH 7531       h. h. bartlett JA   ecX Indonesia  1716504 S-d   0=gBR 1927-04-21  
{"catalogNumber": "1716504", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "H. H. Bartlett", "recordNumber": "7531", "verbatimEventDate": "1927-04-21", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Indonesia", "stateProvince": "", "county": "", "municipality": "", "locality": "Along the Toba trail north of the Asahan River between Toetoepan and Si Makkoek", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}