question: What is the function of a `` beer engine '' ?
answer: to dispense beer from a cask or container in a pub 's basement or cellar
turker_answer: The function of a `` beer engine '' is to dispense beer from a cask or container in a pub 's basement or cellar .
rule-based: The function of a `` beer engine is to dispense beer from a cask or container in a pub 's basement or cellar '' .