s/<\(body\|head\)>//g
s/<\/\(body\|head\|html\)>//g

s/<\/\(li\|p\)>//g

s/="\([a-zA-Z0-9_:.\/#&;@?-]*\)"/=\1/g

s| \{0,1\}xmlns=http://www.w3.org/2000/svg||g