In this task, you are given a context tweet and an answer. Your job is to generate a question for the given answer based on the given tweet paragraph. Note that your question should be answerable based on the given tweet, and the answer to your question should be the given answer.

Context: .@realDonaldTrump refuses to apologize to @ColumbaBush, @JebBush's wife #CNNDebate CNN Politics (@CNNPolitics) September 17, 2015 Answer: jeb bush
who is columba bush married to?

Context: SIGN OF THE (END?) TIMES I call B.S. No way could that weasel ride on that woodpecker's back. Not without a saddle. Walter Burton (@thewalterb) March 3, 2015 Answer: woodpeckers back
what did the weasel ride on?

Context: WFP mobilizes experts in #food assistance, logistics & telecoms for #CyclonePam response World Food Programme (@WFP) March 19, 2015 Answer: wfp

who is mobilizing experts in food assistance, logistics & telecoms?