A scientist looks through a microscope in a alb.
The scientist is looking at bacteria.
Someone using a microscope in a lab is not always looking at bacteria.
exists e1 x1 x2 x3.(in(e1,x3) & n_alb(x3) & through(e1,x2) & n_microscope(x2) & Actor(e1,x1) & v_look(e1) & n_scientist(x1))
exists e1 x1 x2.(n_scientist(x1) & at(e1,x2) & n_bacterium(x2) & Actor(e1,x1) & v_look(e1))