The transposal of PROSE into SPORE is exactly the same as the transposal of OLIVE into VOILE: both can be represented by the transformation 12345 - 41325, which says that the letter in first position is moved to second position, the letter in second position is moved to fourth position, and so on to the letter in fifth position which remains fixed. To save space, the transformation is written 41325.
Eckler, A. Ross
Word Ways: Vol. 10
, Article 3.
Available at: http://digitalcommons.butler.edu/wordways/vol10/iss4/3