Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: The Conservatives have been accused of a "return to the nasty party" as the row continues over the former Co-op Bank boss and his links to Labour.

Parties continue row over Paul Flowers 'smears'