JUST FUCK MY GRAMMAR AND MEANINGS UP
FROM EASY TO HARD
*IOW: In Other Words

The structure of this structure is complex.
(IOW: the composition of this building is not easy to understand.)

Construction on the construction of the construction was completed.
(IOW: the plans for the methods that would be used for the construction of the building were completed.)

He's seemingly seeing the sea's seaming seams.
(IOW: someone, as to the speaker's judgement, is looking at the ocean's seaming (long, narrow indentation) seams (edges/point of joining.)

I see seats seating seat seats that see seats by the see.
(IOW: by the ocean someone is seeing chairs that let other chairs sit on them and the chairs in return see the ocean.)

Rowing rowers row their rows in a row in a row.
(IOW: rowing (adjective, not verb: the act of rowing a boat) rowers (people who are in charge of using the oars on a rowboat) row (the act of rowing with an oar) their rows (a line of things, such as on a spreadsheet) in a row (all at once) in a row (one after the other.)

The construction of the structure of the construction for the structure's structure is very difficult.
(IOW: someone is saying that the act of making blueprints required for an outline of how a building's internal parts (structure) is supposed to look is a difficult process.)

Somehow sometimes somewhere someone somewhat wonders if somehow somewhere someone sometimes wonders about them.
(IOW: by some strange means, every now and then, on some place on the planet, an unspecified person wonders (to a degree) if by some strange means somewhere on the planet another unspecified person every now and then thinks and is curious about the firstmentioned person.)

The institutions in that institute institute that other institutions that should be institutionalized.
(IOW: the institutions (parties/groups/services) in an institute (university or government place) are instituting (bringing forth, suggesting, introducing) the notion that all other institutions (university or government places) should be "institutionalized," i.e. they're crazy.)

Bare bears barely bear younger bare bears whose parents barely bear the bare bear right to barely bear bare bears.
(IOW: nude bears almost don't carry [around] younger nude bears whose parents almost don't possess the minimum rightful ability to almost not carry [around] nude bears.)

The structured structure of the structure's structure structuring was structured to ensure structural structural structuring structures [you can keep going with this sentence indefinitely by repeating "structuring structurally structural structures."]
(IOW: the well-thought out blueprints of the building's structure (i.e. its composition, the materials it's made out of) structuring (e.g. load-bearing walls, vital integral parts, etc.) was built in such a way as to ensure well-thought out structural (i.e. its composition, the materials it's made out of) structures (i.e. composition/machine/producing element) will be be build from it.)
(actually I have no fucking idea what this sentence means)