v_A = cat
v_A = v_B when v_B = cat or animal or feline or etc...
v_A = v_B if v_B = cat, animal, feline, etc...
v_A = v_B where v_B like cat or animal or feline or etc...
if v_B = cat, animal, feline, etc... then v_A = v_B
when v_B = cat or animal or feline or etc... then v_A = v_B
where v_B...