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(This is the time when you are proud because you seem and feel yourself important and popular,who have friends.But the truth is that the group represents zero values.If it does,it means that the entities are all zeros: 0=0+0+0+0+0. One person is enough to put some quality into the group(0+0+1+0+0=1).Case A: I don't accept the zeros invitation.---> Group quality is zero. Case B: I accept,but I don't let anybody sing-or being a pussy.--->Group quality is 1.)