Tomas tells about a species of boyé (yam) that is called gáde boyé. He shows the part that is planted and how it grows as a creeping plant. In general, gáde boyé does well when it leans on a small tree that is called gáyle. If other trees are used as support for gáde boyé, the plant does not give good yield. He also talks about other plants like k’orkahé that can be planted near gáde boyé so that the plants support each other in resisting plant disease and yield better products.