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Keyword	CPC	PCC	Volume	Length string	Score
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when was the first telegram made	0.61	0.9	2821	32	62
who made the first telegraph	0.65	0.9	9962	28	64
when was the first wireless telegraph made	1.74	0.2	6647	42	18
where was the first telegraph made	1.21	0.5	3848	34	85
who made the first telegraph machine	1.46	0.4	7778	36	47

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