Mr. Olsen paid $20 million for the space trip, but says that in the future space travel will likely become as routine as air travel is today.
Air travel and space trip don't have the same number of letters.
( z1 have :polarity - :ARG0 ( z2 and :op ( z3 travel :ARG4 ( z4 air ) ) :op ( z5 trip :ARG4 ( z6 space ) ) ) :ARG1 ( z7 letter :quant ( z8 number :quant-of z2 ) ) )