SRL for [heaped]: The surprise resignations of two top economic government officials [heaped] more uncertainty on London 's financial markets , which already have been laboring under worries about Britain 's ailing economy .
ARG-0: The surprise resignations of two top economic government officials | ARG-1: more uncertainty | ARG-2: on London 's financial markets , which already have been laboring under worries about Britain 's ailing economy