The number of molecule(s) or ion(s) from the following having non-planar structure is_______.$\mathrm{NO}_3, \mathrm{H}_2 \mathrm{O}_2, \mathrm{BF}_3, \mathrm{PCl}_3, \mathrm{XeF}_4, \mathrm{SF}_4, \mathrm{XeO}_3, \mathrm{PH}_4^{+}, \mathrm{SO}_3,\left[\mathrm{Al}(\mathrm{OH})_4\right]^{-}$
