Complex sentence: However, to eliminate confusion as to whether or not "Ootsuka" is pronounced as "u tsu kɐ" or "ɤ tsu kɐ", when romanized Otsuka, it is considered correct.
Split into simpler sentences: However, to eliminate confusion as to whether or not "Ootsuka" is pronounced as "utsukɐ" or "ɤtsukɐ". For that reason, when romanized Otsuka, it is considered correct.