Two weeks ago, China became the first nation to operate a maglev railway commercially, when officials inaugurated a 30-kilometer-long line between downtown Shanghai and the city's airport.
Before two weeks ago, there wasn't a nation that operated a maglev railway commercially.
( z1 nation :polarity - :ARG0-of ( z2 operate :ARG1 ( z3 railway :name ( z4 name :op "Maglev" ) ) :manner ( z5 commercial ) :time ( z6 before :op ( z7 before :op ( z8 now ) :quant ( z9 temporal-quantity :quant 2 :unit ( z10 week ) ) ) ) ) )