question: Why was the Port Phillip Channel Deppening Project subject to controversy and strict regulations ?
answer: fears that beaches and marine wildlife could be affected
turker_answer: The Port Phillip Channel Deppening Project was subject to controversy and strict regulations for fears that beaches and marine wildlife could be affected .
rule-based: The Port Phillip Channel Deppening Project was subject to controversy and strict regulations because of fears that beaches and marine wildlife could be affected .