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£,££,£££££ can be,  and even more  so  for how much ,,£,,,£,,£
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££,££,£,,, sloped. thus a railway  is often not led ,££,£,£,££
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£,£,,,,£,£ be  cut  down  by the  railway janitors. £,££££,,££
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£,££££,££, scattered,  often  put on top of  poles, £££,£££,££
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,,,,,£,,,, is signaled  by  red  or  green  lights. ,££,,,,,,,
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