I’d tell them it’s a piebald 100% het albino and possible het clown.
Het means heterozygous = one copy of a recessive genetic trait. One of its parents was albino and passed a single copy of that mutation which does not express itself visually.
Possible het means one of the parents was heterozygous for clown and there is a possibility the offspring inherited a single copy, which also would not present itself visually.
Time to do some research into Mendelian genetics and work through some punnet squares.