How to get rid of smoke smell<br>Let the book air out. Gently hang an open book over a railing or on a clothesline outside for a few hours to a day. This should cause the smell to decrease.
Smoke smell is undesirable.
The original passage is about how to remove the smell of smoke from a book, implying that the scent of smoke is undesirable.
( z1 desirable :polarity - :ARG1 ( z2 smell :ARG1 ( z3 smoke ) ) )