For each problem and data set described below, state how would you setup the (key, value) pairs as inputs and outputs for the mappers and reducers. also, explain the operation performed by the map and reduce functions given their input. assume your hadoop program uses textinputformat as its input format (where each record corresponds to a line of the input file). since the inputs for the mappers are the same (byte offset, content of the line), you only need to specify the mappers’ outputs. if the problem requires more than one mapreduce jobs, specify the role of each map/reduce function along with their input and output key-value pairs). you should solve the problem with minimum number of mapreduce jobs.