Hints for Act II, Scene 2: Alien Artefacts:

Hint 1

Our xenosymbologists hypothesise that the aliens might be trying to label what lies in those locations.

Hint 2

Whatever could the aliens be trying to use nitroglycerine for? Perhaps they’re trying to rescue whatever’s strongly bound together inside the dairy and egg farm.

Hint 3

It seems like these aliens have different ways of drawing chemical molecules on their home planets. Wonder if their life forms are based on the same building blocks as terrestrial creatures?