Left Branching

A -> B + c
B -> (B) + f

implies f...ffc

Otto's girl's clothes bought in Munich were quaint.

Right Branching

A -> f + B
B -> c + (B)

implies fcc...c

The man hit the boy who then hit the girl..

Center Embedding

A -> a + B + c
B -> d + (B) + f

implies ad...df...fc

The dog the rat bit died.

The cat the dog the man the baby tripped bit scratched collapsed.