Sweet melon vine and Winter melon

Sweet melon vine noun - Any of several varieties of vine whose fruit has a netted rind and edible flesh and a musky smell.

Winter melon and sweet melon vine are semantically related. In some cases you can replace phrase "Winter melon" with "Sweet melon vine", this phrases are similar.

Winter melon noun - Any of a variety of muskmelon vines having fruit with a smooth white rind and white or greenish flesh that does not have a musky smell.

Sweet melon vine and winter melon are semantically related. You can use "Sweet melon vine" instead a noun phrase "Winter melon".