The first spell Anji encountered near the teapot's mouth was a simple water element spell. There was nothing fancy about it. The assumed purpose was to conjure water into the teapot after activating it. Without any other gate symbols, that was all there was to it.
The spell at the bottom of the teapot was a different story. There were several gate symbols drawn around the fire spell. Assuming that her teacher used it to boil the tea in the teapot, why would the spell be so complex? She understood the need to contain the fire element. Unlike conjuring water, it would be insane to have flames spewing out from the bottom of the teapot. Instead, Anji confirmed with her book that her teacher included a logic gate to identify certain properties of fire and remove them upon activation. However, there was one other gate that she had never seen before.