s <- "but he could not avoid the subject FULLSTOP \n\n\n\n\nsimilar pieces by the author\n\n\nlife is great 13022015\nreal men don t eath quiche 22042013\nback to the future 01072012\n\n\n\n and as he takes the stage here wednesday night to rally democrats around hillary clinton mr FULLSTOP obama will revisit his own promise to guide the nation into an era of reconciliation and unity harking back to the themes that propelled his improbable rise but that seem even more out of reach today FULLSTOP \n\n\n\n\nobama at convention to lay out stakes for a divided nation \n\n\n\n we get frustrated with political gridlock worry about racial divisions are shocked and saddened by the madness of orlando or nice mr FULLSTOP"
sub(" *\n{5}.*?\n{4} *", " ", s)

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