The original writing method was particularly difficult for the Spanish priests who were translating books into the vernaculars, because originally omitted the final consonant without a vowel. This could cause confusion for readers over which word or pronunciation a writer originally intended. For example, 'bundok' (mountain) would have been spelled as 'bu-du', with the final consonants of each syllable omitted. Because of this, Francisco López introduced his own kudlit in 1620, called a "sabat" or "krus", that cancelled the implicit "a" vowel sound and which allowed a final consonant to be written. The kudlit was in the form of a "+" sign, in reference to Christianity. This cross-shaped kudlit functions exactly the same as the "virama" in the Devanagari script of India. In fact, Unicode calls this kudlit .