  Anomalous behavior of water in superooled region (namely decrease of density
and sharp increase of response functions at atmospheric pressure) are manly
associated with either existence of liquid-liquid criticality or re-entering
vapor-liquid spinodal into positive pressure. Despite different origin both
scenarios introduce divergence of the response functions. We articulate in the
communication that the criticality is behind water anomalies, water has normal
vapor-liquid spinodal and that the re-entering feature was predicted because of
curved density surface as a consequence of existence of critical point. We can
proof this by new two structure equation of state with criticality resulting
from non-ideal mixing of two states and a background state being modeled by
exactly the same equation of state which was deployed for predicting of
vapor-liquid spinodal while formulating the re-entering scenario.
