Japanese kanji reading can be divided into two types: "On"-readings, derived from the original Chinese pronunciation and "Kun"-readings, originating from the Japanese pronunciation. Kanji that are normally given an "On"-reading around 50% of the time were presented in a context of other kanji that had either a highly dominant "On"-reading or a highly dominant "Kun"-reading. The reading that was given in this experiment was very much biased toward the type of phonological environment in which it was embedded. So native Japanese speakers easily shifted between "On" and "Kun" readings, depending on phonological context, suggesting that separate "On" and "Kun" sub-lexica exist within the phonological lexicon.