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.
The city of Shanghai has both a downtown area and an airport.
( z1 have :ARG0 ( z2 city :name ( z3 name :op "Shanghai" ) ) :ARG1 ( z4 and :op ( z5 area :mod ( z6 downtown ) ) :op ( z7 airport ) ) )