hello, we have 3 sets; Set 1; the invertebrates. It includes 1,300,000 animals Set 2: the chordates. It includes 65,000 animals Set 3: the vertebrates. It includes 62,000 animals The intersection between set 2 and set 3 is 3000 animals The intersection between set 1 and set 2 3000 animals The tricky part/Rules: 1. All the vertebrates are chordates 2. Chordates can be subdivided into invertebrates (ie those invertebrates that have the four features that characterise the chordates) and vertebrates 3. the overwhelming portion of the invertebrates is not chordates (and subsequently are not vertebrates). can you help me representing this relationships by a graph