Inconsistency in paragraph numbering

[Jihyeonbae]

Hello! @sjankin @reyhanehHashempour

It seems that the numbering of paragraph is inconsistent. There are two inconsistencies that I've noticed so far.

1. Lack of numbering: The first paragraph of AFG_07_1952.txt, and AFG_17_1962.txt for example, does not have any number assigned. AFG_26_1971.txt, on the other hand, has numbering for all of the paragraphs.
2. Spacing between the number and text: Paragraph number 16 of AFG_17_1962.txt seems to have spaces, instead of a tab, to separate index and the main text.

Below issues might arise because of the above patterns, but there were several challenges while cleaning the text.

# Reading in data
raw<- readRDS("UNGDC.rds") # I compiled all .txt files as a single dataframe.
processed<-raw

#remove numbering
processed$text<-gsub("\\d+\\.\\t", "", raw$text, perl = TRUE)

I filtered strings with the pattern of digits followed by a dot and a tab. However, this didn't remove the paragraph indices.