The difference? Follow me on Twitter, YouTube and Instagram. Follow me on Twitter, YouTube and Instagram. I could go on. This makes it sound like theyre hidden but theyre not.
YouTube and Instagram are popular.
( z0 popular :ARG1 ( z1 and :op ( z2 publication :name ( z3 name :op "YouTube" ) ) :op ( z4 publication :name ( z5 name :op "Instagram" ) ) ) )
(z0 / popular-02
    :ARG1 (z1 / and
              :op1 (z2 / publication
                       :name (z3 / name
                                 :op1 "YouTube"))
              :op2 (z4 / publication
                       :name (z5 / name
                                 :op1 "Instagram"))))
YouTube and Instagram are popular .
z2 :name z3
z3 :op1 1
z1 :op1 z2
z1 :op2 z4
z4 :name z5
z5 :op1 0
z0 :ARG1 z1