the content is as follows:
I, pronunciation: [ai]?
J, pronounced [d3ei]?
K, pronounced [kei]?
L, pronunciation: [el]
M, pronunciation: [em]?
N, pronunciation: [en]
O, pronunciation: [? u]?
P, pronunciation: [pi:]?
vowel letter: a? a? Ee? Ⅰi? OO? Uu?
consonant letter: Bb? Cc? D? d? Ff? Gg? Hh? Jj? K? L? M? N? O? P? Q? R? S? T? V? W? X? Y? Z?
pronunciation contains [I:]: b? C? D? E? G? T? V?
pronunciation contains [ei]: a? H? J? K?
pronunciation contains [e]: f? L? M? N? S? X? Z?
the pronunciation contains [ju:]: q? U? W?
pronunciation contains [ai]: I? Y
pronunciation contains [ei]: aahh? Jj? Kk?
pronunciation contains [I:]: bb? Cc? Dd? Ee? Gɡ? Pp? T? t? Vv?
the pronunciation contains [e]: ff? L? l? Mm? Nn? Ss? Xx? Zz?
pronunciation contains [ai]: I? IYy?
pronunciation contains [ou]: oo
pronunciation contains [ju:]: QQ? Uu? Ww