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": ""}
    j@+_s Myrtus  1676 o    mnr  1508567   2,lw East Khasi Hills   < thakur rup chand   Z [ Myrtales    hS  1954-09-11  ? 7R SHILLONG  - myrtus   O>mc Forest      MYRTACEAE jHg  meghalaya a2% 
{"catalogNumber": "1508567", "order": "Myrtales", "family": "Myrtaceae", "scientificName": "Myrtus", "scientificNameAuthorship": "", "genus": "Myrtus", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Thakur Rup Chand", "recordNumber": "", "verbatimEventDate": "1954-09-11", "habitat": "Forest", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Meghalaya", "county": "East Khasi Hills", "municipality": "", "locality": "Shillong", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "1676", "maximumElevationInMeters": ""}