picket picket picket line picket picketing picket picket sign picketing secondary picket picket line picket picket line picket picketing picketing picket picket line picketing picketing picketing picket picket http://en.wikipedia.org/wiki/Picketing_%28protest%29 picketing picket picket picket picket picketing picket picket picket picket sign picket secondary picket picket line picket picket lines picket picket picket line http://en.wikipedia.org/wiki/Picketing_(protest) picket line picket secondary picket picket picket line picketing picket picket picket picket sign secondary picket defined as picketing picket picketing picket secondary picket picket picketing picket picket sign