use scrubber;

drop table if exists  lookup_umls;

drop table if exists  lookup_dictionary;

drop table if exists  lookup_term_frequency;

drop table if exists  pubs_pos;

drop table if exists  feature_matrix_train;

drop table if exists  feature_matrix_test;

drop table if exists  human_annotations_train;

drop table if exists  human_annotations_test;

drop table if exists  machine_annotations_train;

drop table if exists  machine_annotations_test;

drop table if exists  machine_annotations_pubs;

drop table if exists  pubs;

drop table if exists  pubs_authors;

drop table if exists  pubs_refs;

drop table if exists  pubs_keywords;