Blah building a nuclear power station in 2025 blah blah
Nuclear power will provide blah blah
Other power stations will be decommissioned blah
The system encounters “nuclear power station” as a noun phrase – treats it as a concept, knows “nuffink”, so it builds
It then encounters “Nuclear power”, builds a new wordgroup, makes it a member of the last object in the wordgroup, and adjusts existing wordgroups to give:
It then finds “Other power station” – “other” can’t lead off a concept, so it has “power station” – it builds that concept and adjusts to give:
The advantage of the method – it only needs to see each concept once, and the order in which they appear is unimportant.