["transcription:consecutive_2gram_repeat:v gx4", "romanized_text:consecutive_2gram_repeat:v gx4"]
v g v g and v g v g is common so it will cancel out. So sigma v g, rho v g, rho v g, sigma v g, rho v g. v g v g v g common and it will cancel out.
v g v g and v g v g is common so it will cancel out. So sigma v g, rho v g, rho v g, sigma v g, rho v g. v g v g v g common and it will cancel out.