You need to have a microscope to see it. I am still angry. I am disappointed and angry with it.' I was angry. It's easy to criticise without giving any solutions so here it is.
The narrator is disappointed with the microscope.
( z0 disappoint :ARG0 ( z1 microscope ) :ARG1 ( z2 person :ARG0-of ( z3 narrate ) ) )
(z0 / disappoint-01
    :ARG0 (z1 / microscope)
    :ARG1 (z2 / person
              :ARG0-of (z3 / narrate-01)))
The narrator is disappointed with the microscope .
z2 :ARG0-of z3
z0 :ARG1 z2
z0 :ARG0 z1