Up to 150 workers were believed to have been inside the factory, which produces syringes and other plastic medical supplies, at the time of the explosion.
A big bang occurred while people were around and not outdoors.
( z1 bang :mod ( z2 big ) :time ( z3 and :op ( z4 be-located-at :ARG1 ( z5 person ) :ARG2 ( z6 around ) ) :op ( z7 be-located-at :polarity - :ARG1 z5 :ARG2 ( z8 outdoors ) ) ) )