I have trouble punctuating elliptical constructions. Which of these is correct?
Asterix defeated seven Romans; Obelix, three.
Asterix defeated seven Romans, Obelix, three.
Asterix defeated seven Romans; Obelix three.
Asterix defeated seven Romans, Obelix three.
What if I include the conjunction?
Asterix defeated seven Romans, and Obelix, three.
Asterix defeated seven Romans, and Obelix three.
Asterix defeated seven Romans and Obelix three.
Is the punctuation different for shorter constructions?
Obelix missed her, and she him.
Obelix missed her, and she, him.
Obelix missed her and she, him.
Obelix missed her and she him.