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 minimum of 100 workers take a needle forging class
( z1 take :ARG0 ( z2 person :ARG0-of ( z3 work ) :quant ( z4 at-least :op 100 ) ) :ARG1 ( z5 class :topic ( z6 forge :ARG1 ( z7 needle ) ) ) )