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Regular Expression
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(?<!\S)(\S+)\h+(?=(?:\S+\h+)*?\1(?!\S))
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gm
Input 1
New
Mike Tyson 1. Street 1234 Vietnam ML(12534/97632) Mike Tyson 1234 1. Street Vietnam ML(12534/97632) Mike Tyson 2. Street 1235 Vietnam2 ML(1254/97632) Mike Tyson 1234 1. Street Vietnam ML(12534/97632) Mike Tyson 2. Street 1235 Vietnam2 ML(1254/9762) Mike Tyson 1234 1. Street Vietnam ML(12534/97632)
Substitution
Mike Tyson 1. Street 1234 Vietnam ML(12534/97632) Mike Tyson 1234 1. Street Vietnam ML(12534/97632) Mike Tyson 2. Street 1235 Vietnam2 ML(1254/97632) Mike Tyson 1234 1. Street Vietnam ML(12534/97632) Mike Tyson 2. Street 1235 Vietnam2 ML(1254/9762) Mike Tyson 1234 1. Street Vietnam ML(12534/97632)