Premise: R/V "Atlantis" is an oceanographic research vessel operated by the Woods Hole Oceanographic Institution as part of the University-National Oceanographic Laboratory System (UNOLS) fleet. She is the host vessel of DSV "Alvin". She is named for the first research vessel operated by the Woods Hole Oceanographic Institution, R/V "Atlantis" for which the "Atlantis" is also named.
Hypothesis: Atlantis is one of many of the unols fleet