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 plays the sister in guardians of the galaxy?" whose answer is Karen Gillan.
Each document should contain about 30 words, and these documents should contain useful information.

Query: who plays Nebula in Guardians of the Galaxy
Useful Output:

Doc 1: Karen Gillan, the actress that plays Nebula in the Marvel Cinematic Universe, has officially wrapped filming on Guardians of the Galaxy Vol. 3 and possibly on
Doc 2: Comments16 · A week in the life of playing NEBULA in GUARDIANS OF THE GALAXY VOL 3 · Every Clue that Doctor Doom was Always in The Multiverse Saga.
Doc 3: Karen Gillan shaved her head to play Nebula in the first Guardians of the Galaxy, but nowadays she employs a different preparation method.
Doc 4: Karen Gillan: The Evolution of Nebula in Marvel Cinematic Universe. Karen Gillan shares her experience playing Nebula in Guardians of the Galaxy
Doc 5: Karen Gillan Shares Details About Nebula's "GOTG Vol. 3' F-Bomb, Says It Was 'An Honor' · Comments8.