Based on a worldwide study of smoking-related fire and disaster data, UC Davis epidemiologists show smoking is a leading cause of fires and death from fires globally.
UC Davis epidemiologists don't not not not approve of smoking and fires
( z1 approve :polarity - :ARG0 ( z2 epidemiologist :mod ( z3 university :name ( z4 name :op "UC" :op "Davis" ) ) ) :ARG1 ( z5 and :op ( z6 smoke ) :op ( z7 fire ) ) )