<prompt> All are aromatic amino acid exceptPhenyl alanineTyrosineLeucineHistidine  <response>: Branched chain Amino Acids are Valine Leucine Isoleucine All branched chain amino acids are essential Aromatic Amino Acids are Phenylalanine - Essential Tyrosine - Non-essential Tryptophan - Essential Histidine - Semi-essential 