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  1. x <- c("Look at that crazy Dog", "Look at that crazy Big Dog")
  2. sub("^.*?((?:\\bBig\\s+)?\\S+)$", "\\1", x)
Success #stdin #stdout 0.31s 39132KB
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[1] "Dog"     "Big Dog"
https://ideone.com/aEmu46
language:
R (R 3.5.2)
created:
3 years ago
visibility:
secret

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