bbchiu...
actually I don't know ga... first comes to my mind is... 4 alps = 4pax's names....... then try to fill in law!!!
If it is 2 dong ka, then the first H maybe little dong, he is hxx xxxx mah........... hehee... but just forget it... now I've changed my mind!!!
he = first part of a name
dy = latter part of a name... so, maybe is Chu Ma, h3 & bmf!!! and what I guess is BMF!!!