Marriage (Same Sex Couples) Bill

I thank my right hon. Friend for giving way. I believe in principle that civil partnerships should be available to heterosexual couples. However, I think that the nature of the debate over these short 20 minutes demonstrates that considerably more thought needs to be given to the proposal that the Minister outlines. May I ask her why this needs to take five years? Would she consider at least a slightly shorter time frame within which to consider these matters, which I readily accept require consideration outside this Bill?