In this task, you're given a statement, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.

[EX Q]: Context: After brief post-doc positions at SLAC and Caltech Link Information: none Question: Of the first two post-doc positions John Ellis held, which company did he work for the longest?
[EX A]: Answer: none

[EX Q]: Context: until 1724, when he traveled to Bohemia Link Information: none Question: What was the GDP of Bohemia the year Denzio travelled to that  region?
[EX A]: Answer: none

[EX Q]: Context: She gained further recognition with the collaborative single "Lady Marmalade" from the Moulin Rouge! soundtrack, which topped many charts worldwide. Link Information: The 2001 version by singers Christina Aguilera, Mýa, Pink and rapper Lil' Kim, recorded for the Moulin Rouge! soundtrack Question: Who did Pink collaborate with on Lady Marmalade?
[EX A]:
Answer: Christina Aguilera