The results show that the two schemes are right, but the scheme forming head shape in sequence can decrease the forming force significantly, the reason is that the material flow mode is changed.

"My head was so full of words that I often had trouble forming simple sentences out loud," he writes, "and my speech became a curious jumble of obscure words and improper syntax."

"Europe is disclosed as a prone and emaciated figure, the Alps shaping like a backbone, and the branching mountain chains like ribs, the peninsular plateau of Spain forming a head" (Thomas Hardy).