SRL for [Munching]: [Munching] pizza when they could and yelling until their voices gave out , the two Benjamin Jacobson specialists at the Big Board 's UAL trading post yesterday presided over what can only be described as a financial free - for - all .
ARG-0: the two Benjamin Jacobson specialists at the Big Board 's UAL trading post | ARG-1: pizza | ARG-M-TMP: when they could