Alter the modified SOS machine from Exercise 19.4 further so that the pauses between dots and dashes within a character may be one or two consecutive 0s, the spaces between characters are three or four consecutive 0s, and five or more consecutive 0s denote an inter-word space. SOS should appear as a single word to be recognized. 

Data in Exercise 19.4

Modify the factored SOS detector of Section 19.2 so that a dot is defined as one or two consecutive 1s and a dash is defined as three or four consecutive 1s.