  In their 2002 article, Ghirardi, Marinatto and Weber have proposed a formal
analysis of the entanglement properties for a system consisting of N
distinguishable particles. Their analysis leads to the differentiation of three
possible situations that can arise in such systems: complete entanglement,
complete non-entanglement, and the remaining cases. I argue that this
categorization leaves out one important possibility in which a system is
completely entangled, and yet some of its subsystems are mutually
non-entangled. As an example I present and discuss a state of a three-particle
system which cannot be decomposed into two non-entangled systems, and yet
particle number one is not entangled with particle number three. Consequently,
I introduce a new notion of utter entanglement, and I argue that some systems
may be completely but not utterly entangled.
