A tidy-format list (dataframe) showing the resulting
classification of each text record into positive, negative
or neutral sentiment. The second column of the dataframe consists of
labels variables present and absent to indicate whether any of
the secondary keywords exist in a text record.
osd_data
A dataframe with the following variables:
ID: numeric id of text record with valid resultant sentiments score and classification.
sentiment: Containing the sentiment classes.
keywords: Indicator to show whether a secondary keyword in present or absent in a text record.