Action

The 1st knot is tied
The 2nd knot is tied
The 3rd knot is tied
The 4th knot is tied
The 5th knot is tied
The 6th knot is tied
The 7th knot is tied
The 8th knot is tied
The 9th knot is tied
The 10th knot is tied

Re-action

The 11th knot is tied with the 1st one.
The 12th knot is tied with the 2nd one.
The 13th knot is tied with the 3rd one.
The 14th knot is tied with the 4th one.
The 15th knot is tied with the 5th one.
The 16th knot is tied with the 6th one.
The 17th knot is tied with the 7th one.
The 18th knot is tied with the 8th one.
The 19th knot is tied with the 9th one.
The 20th knot is tied both with the 10th and the 1st one.

Inter-action

Wind breezes beteween the 1st and 10th
Sunshine streamed through the gap between the 2nd and 12th
Shadow fall down between the 3rd and 13th
Drops of rain began to fall between the 4th and 14th.
Snow fall down between the 5th and 15th
Structure is freezed.