What's the opposite of "precede"?

Line B is preceded by Line A.

Line A is followed by Line B.

EDIT after the first comment:

To make it active, you can try:

Line B follows Line A.

Alternatively, you could say:

Line B comes after Line A.

The most natural-sounding way you could say it (other than using "follows") is probably: "is next after".

If "line A" precedes "line B", "line B" is/comes next after "line A".

"Succeed" is the technical antonym to "precede", but "line B succeeds line A" does not sound as natural.

Then again, though you discarded the term "follows", it may turn out to be a good choice.

Antecede is synonymous with precede (http://www.merriam-webster.com/dictionary/antecede). I believe the proper "mirror word" to precede is succeed. This usage is most commonly seen in the form predecessor/successor, but it's perfectly valid to say that line a precedes line b and line b succeeds line a.

From etymological view "succeed" is antonym for "precede" but at least in oxforddictionaries.com this meaning is last meaning in modern English which in this sense synonyms are "follow", "come after", "follow after".