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<http://webisa.webdatacommons.org/176156851>	<http://www.w3.org/ns/prov#value>	"However, these efforts have not been properly effective, particularly as a result of the reliable market for tobacco compared to other crops." .
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<http://webisa.webdatacommons.org/prov/442410170>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/176156851> .