complete assembly line

line = CF::Line.create("Bizzcardarmy","Digitization") do |l|
          # creation of initial input_formats for line with (Company, Website)
          CF::InputFormat.new({:line => l, :name => "Company", :required => true})
          CF::InputFormat.new({:line => l, :name => "Website", :required => true, :valid_type => "url"})
          # creation of first station with input_format Company and without Website
          CF::Station.create({:line => l, :type => "work"}) do |s|
            CF::HumanWorker.new({:station => s, :number => 1, :reward => 20})
            CF::TaskForm.create({:station => s, :title => "Enter the name of CEO", :instruction => "Describe"}) do |i|
              CF::FormField.new({:form => i, :label => "First Name", :field_type => "short_answer", :required => "true"})
              CF::FormField.new({:form => i, :label => "Middle Name", :field_type => "short_answer"})
              CF::FormField.new({:form => i, :label => "Last Name", :field_type => "short_answer", :required => "true"})
            end
          end
        end