question: What incident causes Gandhi to lead a nonviolent protest for Indian rights ?
answer: When he gets thrown off a South African bus for being an Indian in a first-class compartment
turker_answer: The incident that causes Gandhi to lead a nonviolent protest for Indian rights is when he gets thrown off a South African bus for being an Indian in a first-class compartment .
rule-based: When he gets thrown off a South African bus for being an Indian in a first-class compartment causes Gandhi to lead a nonviolent protest for Indian rights .