How to make a superhero<br>Think about accidental or " nuclear " superpowers. Some characters have " nuclear " powers, which means that they've come in contact with some kind of substance that has given them super-human powers. This was especially popular during the 1940s in the " golden age " of comics when nuclear technology was on the rise.
In the the post-depression era, it was common for superheros to get their powers from nuclear substances. 
The 1940's would be considered the post-depression era; the context states that in the 40's, many superheros were given their powers from nuclear substances. 
( z1 common :domain ( z2 get :ARG0 ( z3 superheros ) :ARG1 ( z4 power :poss z3 ) :ARG2 ( z5 substance :mod ( z6 nucleus ) ) ) :time ( z7 era :mod ( z8 after :op ( z9 depress ) ) ) )