They are both already in application internationally; both are advantageous to passengers, shippers and carriers; they allow greater uniformity of the rules governing international air transportation; they will both contribute to lessening the risk of litigation within the aeronautical industry.
 both are advantageous to more than just carriers
both are advantageous to passengers, shippers and carriers
( z1 advantage :ARG1 ( z2 both ) :ARG2 ( z3 carrier :mod ( z4 more-than :mod ( z5 just ) ) ) )