Given the task definition and input, reply with output. From the given sentence, extract the phrase (often noun or verb) that carries the given relationship. The generated phrase should be present in the sentence.

Given Relationship: 'bomb', Sentence: 'In a bid to put an end to Israels bombing of the Gaza Strip , Scottish singer Annie Lennox and English stand-up comedian Alexei Sayle have joined high-profile campaigners in voicing their concerns .'
bombing