My friends

Ivan is taller than Dima, but Dasha is taller than Ivan and she is the tallest.

Dima is shorter than Ivan, but Dima is shorter than Dima and he is the shortest.

Dima is cleverer than Dima, but Ilya is cleverer than Dima and he is the tallest.

Dima is faster than Dima, but Ivan is the faster than Dima and he is the fastest.

Dima is slower than Ivan, but Dima is slower than Dima and he is the slowest.
Semen is older than Dima, but