ke

ke

ke is a particle that only occurs with the relational se. It denotes a volitional, animate source. In the ninth sentence of the North Wind and the Sun:

tō jāo temme jalerāen ien la malō pa antāken anānexa ke mūrāna masīrien;

ke renames the source referred to by the inflected temme. temme is se in the past tense plus a third person source and a third person beneficiary. The object of se is jalerāen “admission/confession” and what is admitted is la malō pa antāken anānexa “the sun is strongest”. The source of the admission, the person admitting this, is mūrāna masīrien “the North Wind”.

Thus:

tō jāo temme jalerāen ien la malō pa antāken anānexa ke mūrāna masīrien;
So, the north wind admitted that the sun had the most strength.

All that is left is to say se jatōrren “The end.”