I can't sensibly advise doing this, because parsing html with regex is not likely to end well but you might be able to get the string MANIKA
with
sed -nr '/MOM:/ s/.*MOM:([^"]+).*/\1/p' file
It works OK on your sample anyway...
Notes
-n
don't print anything until we ask for it-r
use ERE/string/
find lines withstring
s/old/new/
replaceold
withnew
.*
any number of any characters([^"]+)
save some characters that are not"
\1
backreference to saved charactersp
print just the lines we changed