Apart from the new substances entering the market, the phase out of existing ones, which have been definitely identified as damaging the ozone layer, is far from complete.
Newer substances are more environmentally friendly than current ones on the market.
It can be inferred from the above statement that new substances do not need to be taken off the market because they are not damaging the ozone layer like some current ones that need to be phased out. The system may have a harder time making inferences.
( z1 have-degree :ARG1 ( z2 substance :ARG1-of ( z3 new ) ) :ARG2 ( z4 friendly :ARG1 z2 :ARG2 ( z5 environment ) ) :ARG3 ( z6 more ) :ARG4 ( z7 substance :time ( z8 current ) :location ( z9 market ) ) )