Look into a good trainer. Enrollment has soared as the courses have moved online.  Courtney K., Mobridge, S.D. Suddenly, I thought about the dining room wallpaper, which had a plastic coating on it. You can also try a white noise machine.
The machine is expensive to operate.
( z0 expensive :domain ( z1 operate :ARG1 ( z2 machine ) ) )
(z0 / expensive
    :domain (z1 / operate-01
                :ARG1 (z2 / machine)))
The machine is expensive to operate .
z0 :domain z1
z1 :ARG1 z2