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: Sometimes attack is the best form of defence and this bold move should be seen as a response to threats in the market from a resurgent Tesco's move into wholesaling, the rise of the discounters Aldi and Lidl and of course Amazon - which has the UK grocery market in its sights.

Will 'bigger is better' approach work for Sainsbury's?