How to buy propane<br>Determine what your propane tank is for. Whether you purchase a propane tank or lease one, the best way to start narrowing down your choices is by asking yourself what you need propane for. It can be used for drying clothes, heating your home, and cooking, among other things.
This context does not teach people how to make their own propane.
This statement is definitely correct, because the context teaches you how to buy, not make, propane. The system may have been thinking beyond the context.
( z1 teach :polarity - :ARG0 ( z2 context :mod ( z3 this ) ) :ARG1 ( z4 make :ARG0 ( z5 person ) :ARG1 ( z6 propane :poss z5 ) ) :ARG2 z5 )