![law of three syllables law of three morae lax tense vs lax Laz South Caucasian lect [Grk léktos ‘chosen, picked out; word, expression’]](https://images.tandf.co.uk/common/jackets/crclarge/978041520/9780415203197.jpg "law of three syllables law of three morae lax tense vs lax Laz South Caucasian lect [Grk léktos ‘chosen, picked out; word, expression’]")
ABSTRACT
A type of phrase structure construction. In a left-branching structure in a tree diagram each node which branches into constituents A and B is of the type that only A, the left branch, can contain any further branching. An English example of such a construction is [[[Mary’s] sister’s] book].
