In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

Example Input: Architectural shingles are twice or _ times as thick as ordinary shingles.
Example Output: three

Example Input: Space is experienced as extended in _ dimensions.
Example Output: three

Example Input: Decompression illness is a continuum from _ symptoms or signs to severe multisystem involvement.
Example Output:
no