Because I taught teenagers, I was very wary of them. So I used to love it when it got to 3 oclock and they were their parents responsibility and not mine. It doesnt mean were garrulous people, were not just talking about rubbish. I still often think, I havent really improved my situation from my grandmother or mother, but thats not true either because I did go to university. My identity is not my work.
They were likely not discussing rubbish, but  a lot of trash talk and bad grades from high school.
( z0 likely :ARG1 ( z1 contrast :ARG1 ( z2 discuss :ARG0 ( z3 they ) :ARG1 ( z4 rubbish ) :polarity - ) :ARG2 ( z5 discuss :ARG0 z3 :ARG1 ( z6 and :op ( z7 talk :quant ( z8 lot ) :ARG1 ( z9 trash ) ) :op ( z10 grade :ARG1-of ( z11 bad ) ) :time ( z12 high-school ) ) ) ) )
(z0 / likely-01
    :ARG1 (z1 / contrast-01
              :ARG1 (z2 / discuss-01
                        :ARG0 (z3 / they)
                        :ARG1 (z4 / rubbish)
                        :polarity -)
              :ARG2 (z5 / discuss-01
                        :ARG0 z3
                        :ARG1 (z6 / and
                                  :op1 (z7 / talk-01
                                           :quant (z8 / lot)
                                           :ARG1 (z9 / trash))
                                  :op2 (z10 / grade
                                            :ARG1-of (z11 / bad-02))
                                  :time (z12 / high-school)))))
They were likely not discussing rubbish , but a lot of trash talk and bad grades from high school .
z2 :polarity 0
z2 :ARG0 z3
z5 :ARG0 z3
z2 :ARG1 z4
z1 :ARG2 z5
z1 :ARG1 z2
z0 :ARG1 z1
z7 :ARG1 z9
z7 :quant z8
z6 :op1 z7
z5 :ARG1 z6
z10 :ARG1-of z11
z6 :op2 z10
z6 :time z12