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 is the opening act for journey and def leppard?" whose answer is Foreigner (San Francisco).
Each document should contain about 30 words, and these documents should contain useful information.

Query: journey def leppard opening act
Useful Output:

Doc 1: Opening Acts. Joining Def Leppard and Journey at most shows will be The Steve Miller Band who play with Def Leppard for the first time. Cheap
Doc 2: Def Leppard, Journey, Heart, Steve Miller, Cheap Trick Announce Stadium Tour  An all-star lineup of opening acts include Heart, Steve Miller
Doc 3:  band's July 13 performance. By opening with the double punch of “Only the Young” and “Be Good to Yourself,” Journey kicked off their 90
Doc 4: Def Leppard and Journey have set a North American stadium tour in 2024. Steve Miller Band will open most of the dates, with Cheap Trick or
Doc 5: Def Leppard and Journey are going on a co-headlining tour in 2024 with Cheap Trick, Heart and Steve Miller Band joining them on select dates