The invention relates to the combination of compounds of formula:with one or more anticancer agents. The method includes: receiving an audio session as unsegmented audio data; computing a spectral ratio of principal component analysis of sections of the received audio session by a ratio between the largest eigenvalue and the second largest eigenvalue; using the PCA spectral ratio as a confidence measure for speaker diarization processing. The injector is pivotable with respect to the wall of the boiler about at least one axis, such that an angle at which the pollutant reduction substance is injected into the boiler is variable. The receiving space of the discharging element communicates with the other end of the water duct in at least one mode of operation of the shower head. The blower is in communication with the main bore and grating, and generates suction that removes moisture, dirt, and debris from umbrellas in the main bore and from shoes positioned upon the grating.