Disambiguation evidence for Boeing 707 via surface form

"Boeing 707 (testbed)"

Triples (1)

Triples where some other subject referred to this entity as "Boeing 707 (testbed)".

Rolls-Royce Olympus → usedInAircraft →
"Boeing 707 (testbed)"
↳ resolves to Boeing 707
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linked to: Rolls-Royce Olympus turbojet