Assertion: general post office | /r/CapableOf | become expensive
Facets:
value: gradually
type: MANNER
value: after purchasing adjacent property
type: TEMPORAL
value: prohibitively
type: MANNER
Source sentences:
text: After purchasing adjacent property in the centre of London's financial district gradually became prohibitively expensive, the General Post Office purchased slums on the east side of St. Martin's Le Grand and cleared them to establish a new headquarters, Britain's first purpose-built mail facility.