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Semaphore (lit. 'apparatus for signalling'; from Ancient Greek σῆμα (sêma) 'mark, sign, token' and Greek -φόρος (-phóros) 'bearer, carrier') is the use of an apparatus to create a visual signal transmitted over distance. A semaphore can be performed with devices including: fire, lights, flags, sunlight, and moving arms. Semaphores can be used for…
Lights, Fire & Moving arms
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telegraph signal system used flags one communication using arms sunlight tower light century message lamp code signals visual lights messages
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Semaphore | is a | telegraphy system conveying information at a distance by means of visual signals with hand-held flags | 0.90 | text |
| in railway systems | instance of | or for traffic signalling | 0.80 | text |
| or traffic lights in cities | instance of | or for traffic signalling | 0.80 | text |
| spelling out messages | instance of | serving purposes | 0.80 | text |
| identifying letters | instance of | serving purposes | 0.80 | text |
| numbers | instance of | serving purposes | 0.80 | text |
| signalling distress or requests for assistance | instance of | serving purposes | 0.80 | text |
| communicating nautical procedures | instance of | serving purposes | 0.80 | text |
| Semaphore | related to Decline | In | 0.60 | section |
| Semaphore | related to Decline | American | 0.60 | section |
| Semaphore | related to Decline | Samuel Morse | 0.60 | section |
| Semaphore | related to Decline | Morse | 0.60 | section |
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