China has taken delivery of the first section of a futuristic high-speed train which levitates above the track.
Over time, the track's ability for the levitation force will weaken.
( z1 weaken :ARG1 ( z2 capable :ARG1 ( z3 track ) :ARG2 ( z4 force :ARG2 ( z5 levitate ) ) ) :mod ( z6 over-time ) )