eilanden
type: Thing
type: Concept
additional type: Concept

meeuwen
type: Thing
type: Concept
additional type: Concept

waterbouw
type: Concept
type: Thing
additional type: Concept

Nederland
type: Concept
type: Thing
additional type: Concept

zeeën
type: Concept
type: Thing
additional type: Concept

sluizen
type: Concept
type: Thing
additional type: Concept

riet
type: Thing
type: Concept
additional type: Concept

helikopters
type: Thing
type: Concept
additional type: Concept

caissons
type: Thing
type: Concept
additional type: Concept

havens
type: Thing
type: Concept
additional type: Concept

Friesland
type: Thing
type: Concept
additional type: Concept

arbeid
type: Thing
type: Concept
additional type: Concept

luchtopnamen
type: Concept
type: Thing
additional type: Concept

dijken
type: Thing
type: Concept
additional type: Concept

Weeknummer 66-15
type: CreativeWork

bouwactiviteiten
type: Thing
type: Concept
additional type: Concept

Lauwerszee
type: Concept
type: Thing
additional type: Concept

huisvesting
type: Thing
type: Concept
additional type: Concept

polders
type: Thing
type: Concept
additional type: Concept

Bernhard (prins Nederland)
type: Concept
type: Thing
type: Person
additional type: Concept

dijkverzwaringen
type: Concept
type: Thing
additional type: Concept

Clip
type: Class

Deltawerken
type: Concept
type: Thing
additional type: Concept

schepen
type: Concept
type: Thing
additional type: Concept

Groningen (provincie)
type: Concept
type: Thing
additional type: Concept