Table 3: Boolean values representing presence of web categories in sessions.

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FTTTFFFFFFFFFFFF
FFFFFTTTFFFFFFFF
FFTTTTFFTTFFFFFF
TFFFFTFFFFTFFTFF
TFFFFTFFFTFFFFFT
FFFFFFFTFFFFFFTF
FFFFFTFFFFFTTFFF
FFFFFFFFTFFTFFFF
FFTFFFFFTTFFFFFF
FFFFFFFFTFFFFFFF
FFTFFFFFFFFFFFFF
FFFFTFFFFTFFTFFF
FFFFFFFFFFFFTFFF