left lane
|
ends
|
Existent
|
Process: existential
|
Reasoning:
From above (semantics), the meaning being realised isn't a 'doing-&-happening', so not material.
From below (group rank), the simple present tense isn't marked, carrying the feature 'habitual', so not material.
From roundabout, the clause is agnate with there will no longer be a left lane, so existential.