question: What was economist Roubini called by the New York Times for predicting a collapse of the housing market ?
answer: `` Dr. Doom ''
turker_answer: Economist Roubini was called `` Dr. Doom '' by the New York Times for predicting a collapse of the housing market .
rule-based: Economist Roubini was called `` Dr. Doom by the New York Times for predicting a collapse of the housing market .