Someone (mag-, mang-) unfolds, unwraps the wrapping of something (-an).
Nangboksay si Nina so tolas ni ānang na.
Nina unfolded her mother's letter.
Boksayan ko pinongosan ni āmang a rakanen.
I unwrap the vegetables father bundled (in a banana leaf).
A flower, etc., (maN-) opens up, unfolds.
Namoksay sabong no mirasol.
The sunflower opened up.