There was no smoke, there was no after-effects of it.' There was no smoke, there was no after-effects of it.' The dangers associated with silos containing biosolids are well known in the industry. The blast happened in a silo that held treated biosolids. It blew up at around 11am and also hurt a fifth person whose injuries are not life-threatening.
The blast happened in a firework launch.
( z0 blast :subevent-of ( z1 launch :ARG1 ( z2 firework ) ) )
(z0 / blast-05
    :subevent-of (z1 / launch-01
                     :ARG1 (z2 / firework)))
The blast happened in a firework launch .
z1 :ARG1 z2
z0 :subevent-of z1