Ladies and Gentlemen, we have a winner for best sentance!
Here's what I see so far
a apes ash asp en happens has hash heaps hips I ins in
nap nape nip pain pan pans pass peas pen phase pin pies pine pines sane sap shape shapes Shep shin shine ship ships sin sine sip sips snap snipe snips spin spins
Heck, just take the singular or plural form of those that don't have both listed above and this list will grow longer quickly!