Who had a higher number of yards per reception on average, Daryl Johnston or Michael Irvin?
return Daryl Johnston ;return receptions of #1 ;return yards of #2 ;return average of #3 ;return Michael Irvin ;return receptions of #5 ;return yards of #6 ;return average of #7 ;return which is highest of #4 ,  #8
['select', 'project', 'project', 'aggregate', 'select', 'project', 'project', 'aggregate', 'comparison']