SRL for [unsatisfactory]: However , this so-called `` expanding Earth '' hypothesis was [unsatisfactory] because its supporters could offer no convincing geologic mechanism to produce such a huge , sudden expansion .
ARG-M-DIS: However | ARG-1: this so-called `` expanding Earth '' hypothesis | ARG-M-CAU: because its supporters could offer no convincing geologic mechanism to produce such a huge , sudden expansion