For my phonology homework, we're given the nasals [n] [m] [η] and nasalized glides [w] and [j]. From the data, I've found that [n] and [m] are phonemes and [η] is an allophone of /n/. What I can't figure out is where the nasal glides fit in. They appear w̃ and ȷ̃.
The exact question is this:
source (section 3 on page 67)