Grand Plural

Phenomena is the plural of phenomenon, so lemma must be the plural of lemon, right?

– Ah, since lemma’s plural is lemmata, lemmata must be the grand plural of lemon.

– So one lemon, two lemma, and three lemmata.

– I’m not sure if it shouldn’t be “one lemon, two lemma, and four lemmata” because lemmata should square the lemma.

Left Arm

– You have to do it. I can’t lock the door, because of the “left arm, right pocket” problem, you know.

– You should grow your left arm on the right side instead of on the left side, so you wouldn’t have this problem.