Within cannot be on the first or last position.

Within cannot be on immediately followed or preceded by containing.

Within cannot be immediately followed or preceded by another within.

Within cannot immediately followed by beginning of structure.

Within cannot be immediately preceded or followed by invalid query.

Containing cannot be on the first or last position.

Containing cannot be on immediately followed or preceded by within.

Containing cannot be immediately followed or preceded by another containing.

Containing cannot be immediately preceded or followed by invalid query.

n has to be positive integer smaller then k.

k has to be positive integer bigger then n.

Number has to be empty or positive integer.

Position has to be positive integer.

Seek has to be positive integer.

Context has to be integer.

Context has to be integer.

Coll. number has to be positive integer.

Coll. number has to be positive integer.

Position has to be positive integer.

Value has to be positive integer.