In this task, you are given a question and a context passage. You have to answer the question based on the given passage.

[Q]: Of Tito and Stalin, who was considered the overall leader?, Context: In the first post war years Tito was widely considered a communist leader very loyal to Moscow, indeed, he was often viewed as second only to Stalin in the Eastern Bloc. In fact, Stalin and Tito had an uneasy alliance from the start, with Stalin considering Tito too independent.
[A]: Stalin


[Q]: What is one example of hydrogen cations?, Context: To avoid the implication of the naked "solvated proton" in solution, acidic aqueous solutions are sometimes considered to contain a less unlikely fictitious species, termed the "hydronium ion" (H3O+). However, even in this case, such solvated hydrogen cations are more realistically conceived as being organized into clusters that form species closer to H9O+4. Other oxonium ions are found when water is in acidic solution with other solvents.
[A]: hydronium ion


[Q]: Those who make remarks towards a television program or an event for others to hear or listen to are?, Context: BSkyB's direct-to-home satellite service became available in 10 million homes in 2010, Europe's first pay-TV platform in to achieve that milestone. Confirming it had reached its target, the broadcaster said its reach into 36% of households in the UK represented an audience of more than 25m people. The target was first announced in August 2004, since then an additional 2.4m customers had subscribed to BSkyB's direct-to-home service. Media commentators had debated whether the figure could be reached as the growth in subscriber numbers elsewhere in Europe flattened.
[A]:
commentators