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 purpurascens   1 19l72-|0-28 Joseph P. W. Woo, T. K. Woo 0N        CENCHRUS poales $V xh     z:MD+ 1704779     YUEN LONG  Y? tough, cespitose grass by the road-side; forming small colony, hard to pull out; inflores. with stiff awns; common   rt cenchrus purpurascens  U58(R poaceae    THUNB. v AV    hongkong 5:Kf  
{"catalogNumber": "1704779", "order": "Poales", "family": "Poaceae", "scientificName": "Cenchrus purpurascens", "scientificNameAuthorship": "Thunb.", "genus": "Cenchrus", "subgenus": "", "specificEpithet": "purpurascens", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Joseph P. W. Woo, T. K. Woo", "recordNumber": "", "verbatimEventDate": "1972-10-28", "habitat": "tough, cespitose grass by the road-side; forming small colony, hard to pull out; inflores. with stiff awns; common", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Hong Kong", "stateProvince": "", "county": "Yuen Long", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}