Complex sentence: It has been estimated that only 30% to 40% of sounds in the English language are distinguishable from sight alone; the phrase "where there's life, there's hope" looks identical to "where's the lavender soap" in most English dialects.
Split into simpler sentences: It has been estimated that only 30% to 40% of sounds in the English language are distinguishable from sight alone. Thus, for example, the phrase "where there's life, there's hope" looks identical to "where's the lavender soap" in most English dialects.