sentence1: transliteration is a key building block for multilingual and cross-lingual nlp since it is essential for ( i ) handling of names in applications like machine translation ( mt ) and cross-lingual information retrieval ( clir ) , and ( ii ) user-friendly input methods .
sentence2: transliteration is a key building block for multilingual and cross-lingual nlp since it is useful for user-friendly input methods and applications like machine translation and cross-lingual information retrieval .