The poems will be featured on posters at stations throughout the Valley Lines network.
Mr Langman said the electrification announcement of the Swansea and Valley lines was made back at the beginning of last summer.
An M4 relief road south of Newport, electrification of valley lines trains - two schemes Prof Morgan believes would benefit Wales' economy.
The base, in an eastern Afghanistan valley, was surrounded by ridge lines where the insurgents were able to fire down at U.S. and Afghan troops.
In the beginning, they put antennas on hilltops, then strung coaxial cable lines down to homes in the valley where most people, blocked by topography, had trouble receiving broadcast signals.
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Areas of the north San Fernando Valley experienced outages as tree branches tangled with power lines in at least two areas, said Michelle Vargas, spokeswoman for the Los Angeles Department of Water and Power.
What's more, as producers retreat from the front lines, exhausted from battling the latest Silicon Valley startup and its kamikaze products, shareholders will cheer.
The branch lines in Devon and Cornwall are the Tarka Line, Tamar Valley Line, Looe Valley Line, Atlantic Coast Line to Newquay, Maritime Line to Falmouth Docks, St Ives Bay Line and the Avocet Line to Exmouth.
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Present-day Silicon Valley is filled with slick marketing pitches, shiny gadgets that rely on invisible transistors and magical lines of code.
While we all waited patiently in long lines to see nothing, the real technology news was being made back in Silicon Valley.
Then SunPower, the Silicon Valley solar panel manufacturer and power plant developer, said it would temporarily shut down half of its 12 photovoltaic production lines in the Philippines and lay off 900 workers.
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