You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "who wrote the song if i could only imagine?" whose answer is Bart Millard.
Each document should contain about 30 words, and these documents should contain useful information.

Query: who wrote the song if i could only imagine
Useful Output:

Doc 1: I wrote I Can Only Imagine after my father passed away with cancer. I was 19 when he passed away and wrote it a few years after that when
Doc 2: Worship Leader's Alex MacDougall recently visited with Bart Millard, founding member of MercyMe, and author of the song, “I Can Only
Doc 3: Inspired by the death of his father, Mercy Me lead singer Bart Millard wrote 'I Can Only Imagine' to process what he'd seen happen to his Dad.
Doc 4: In 2001, Christian rock band MercyMe released "I Can Only Imagine," the lyrics for which lead singer Bart Millard wrote in just ten minutes.
Doc 5: Bart Millard couldn't have imagined the impact a hastily written song would have on the world when he first penned I Can Only Imagine, alone on