Every permutable subgroup of a finite group is semipermutable. The converse, however, is not necessarily true.

[…] and as for fruit, the high garden wall was lined with pear trees, spread out flat against it, where they managed to produce a cold, flavorless fruit, a good deal akin to cucumbers.

In the current era of global warming, Mount Kilimanjaro is no longer permanently snow-capped.

The so-called mouth is always placed at one end of these poles, and from it radiate the most prominent organs, in consequence of which I have called this side of the body the oral or actinal area, and the opposite side the aboral or abactinal area.