mystring1 <- "Other work has shown that, in addition to language-general features such as a
              decreased speaking rate and an expanded pitch range, clear speech production
              involves the enhancement of the acoustic-phonetic distance between
              phonologically contrastive categories 􏰃e.g., Ferguson and Kewley-Port, 2002; 
              Krause and Braida, 2004, Picheny et al, 1986; Smiljanic and Bradlow, 2005, 2007􏰀."
 
mystring2 <- "Other work has shown that, in addition to language-general features such as a
              decreased speaking rate and an expanded pitch range, clear speech production
              involves the enhancement of the acoustic-phonetic distance between
              phonologically contrastive categories 􏰃e.g., Ferguson and Kewley-Port, 2002; 
              Krause and Braida, 2004, Picheny et al, 1986; Smiljanic and Bradlow, 2005,
              2007􏰀. Therefore, reduced sensitivity to any or all of the language-specific
              acoustic-phonetic dimensions of contrast and clear speech enhancement would
              yield a diminished clear speech benefit for non-native listeners. This may
              appear somewhat surprising given that clear speech production was elicited in 
              our studies by instructing the talkers to speak clearly for the sake of
              listeners with either a hearing impairment or from a different native language
              background. However, as discussed further in Bradlow and Bent 􏰃2002􏰀, the limits
              of clear speech as a means of enhancing non-native speech perception likely
              reflect the “mistuning” that characterizes spoken language communication between
              native and non-native speakers."
 
 
gsub(x = mystring1, pattern = "(?s)\\be\\.g\\.,.*?[0-9]{4}[^\\w.]*(?=\\.)", replacement = "", perl = TRUE)
gsub(x = mystring2, pattern = "(?s)\\be\\.g\\.,.*?[0-9]{4}[^\\w.]*(?=\\.)", replacement = "", perl = TRUE)

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