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 helped develop nuclear power, and also worked with Ernest Walton?" whose answer is John Cockcroft.
Each document should contain about 30 words, and these documents should contain useful information.

Query: who helped Ernest Walton develop nuclear power
Useful Output:

Doc 1: Ernest Walton, 91, the Nobel laureate who helped usher in the nuclear age in 1932 when he and John Cockcroft split an atom, died June 25 at a hospital in
Doc 2: During the early 1930s Walton and John Cockcroft collaborated to build an apparatus that split the nuclei of lithium atoms by bombarding them
Doc 3: Nobel laureate Ernest Walton, who helped usher in the nuclear age when in 1932 he and John Cockcroft split an atom, has died at age 91.
Doc 4: Sir John Douglas Cockcroft was a renowned British physicist who was instrumental in the development of nuclear power.
Doc 5: Ernest Walton – Irish physicist of the highest calibre – was the first, alongside his Cambridge fellow John Cockroft, to split the atom.