Today I'm going to go into detail on how I divided up space for expressing bigness and smallness in Reisu.
Consider the boxes below:
Space is divided three ways: Up and down, left and right, front and back. We can say things have bigness and smallness in any of those dimensions.
For example: Saku akari ya yuba, or The red box is tall. Saku soxu ya timi, or The purple box is short. So the scale of height goes between the words yuba and timi. These words don't imply where the starting point is, so yuba can also be used for deep, and timi can be used for shallow. So to say The volcano is tall we can say Tozaikusi yuba. To say the ocean is deep we can say Laza yuba.
For the yellow and orange boxes the words are molo and niki respectively. These words are for looking at distance left to right. For example we would say Taxisopua molo for a long snake and Taxisopua niki for a short snake.
The green and blue boxes are for length front to back. These words are daga and fitu. So a long road is Tagu daga, and a short road is Tagu fitu.
So we can describe each of the boxes as follows:
Saku akari ya yuba.
Saku soxu ya timi.
Saku itaka ya molo.
Saku itakari ya niki.
Saku afi ya daga.
Saku lanu ya fitu.