  In "Landau equation and QCD sum rules for the tetraquark molecular states", I
list out six reasons to refute the assertion of Lucha, Melikhov and Sazdjian.
In "Comment on "Landau equation and QCD sum rules for the tetraquark molecular
states"", they refute my viewpoint. If they want to the refute my viewpoint
robustly, they should refute the six reasons one by one, and provide at least
one example to illustrate that they have obtained reliable QCD sum rules for
the tetraquark states and free two-meson states, respectively.
