It helps reduce air pollution from vehicles by identifying the most polluting vehicles and requiring their proper repair.
(It; helps; reduce air pollution from vehicles by identifying the most polluting vehicles and requiring their proper repair) Context(It helps,List([0, 8))):(It; helps reduce; air pollution; from vehicles) Context(It helps reduce,List([0, 15))):(It; helps reduce air pollution requiring; their proper repair)
It helps,List([0, 8)) It helps reduce,List([0, 15))
It It It
helps helps reduce helps reduce air pollution requiring
reduce air pollution from vehicles by identifying the most polluting vehicles and requiring their proper repair
air pollution from vehicles
their proper repair