Simplify the following text for a Grade 11 native English-speaking person.
Original: In its broadest sense , Northern Shaolin ( ; Pinyin : bÄ ishÃ olÃ n , Cantonese : Bak Sil Lum ) refers to the external ( as opposed to internal ) martial arts of Northern China referring to those styles from the Northern Shaolin Monastery in Henan .
Simplified: Northern Shaolin ( ; Pinyin : bÄ ishÃ olÃ n , Cantonese : Bak Sil Lum ) is one of the Chinese martial arts and is coming from the Northern Shaolin Monastery in Henan .