for an example, we have a datasource with three columns
column_a: text data which describes one feature
column_b: text data which describes another feature
column_c : category/label
If i have to approach this kind of text classification problem with BERT, how can we pass column_a and column_b as inputs to bert model?  is there a way to concatenate two sentences using separator token or is there a way to achieve this using encoder_plus method?
any help is appreciated!