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": ""}
 Luzon b t<9  1704753 f8    ;?sk0 1939-12-13 322 uB,@      Makati, Rizal l    = cenchrus purpurascens  |y) poales   gregorio t. velasquez XE  philippines f90&`   Cenchrus Qe      hq`2  purpurascens    1l2 calabarzon 
{"catalogNumber": "1704753", "order": "Poales", "family": "", "scientificName": "Cenchrus purpurascens", "scientificNameAuthorship": "", "genus": "Cenchrus", "subgenus": "", "specificEpithet": "purpurascens", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Gregorio T. Velasquez", "recordNumber": "322", "verbatimEventDate": "1939-12-13", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Philippines", "stateProvince": "Luzon", "county": "Calabarzon", "municipality": "", "locality": "Makati, Rizal", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}