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22 abstract against avoid barren billboard block careful catch caution cautious clipping concept conceptual crossroads dead direction distant end forbidden fruitless futile green ground guard guide guidepost heartless heed idea impasse improvement indifferent ineffective irrelevant isolated land leery man mans meaningless message motivational notice notification nowhere path pointless post powerless refrain remote road shun stalemate stumbling symbol tentative trivial useless vain warning wary watch way white worthless