One possible exotic QCD hadronic structure is \(q q \bar{q} \bar{q}\). Assuming the quarks and antiquarks to transform according to the fundamental and conjugate representations of an \(\mathrm{SU}(3)\) color symmetry, respectively, find the color \(\mathrm{SU}(3)\) irreps corresponding to \(q q \bar{q} \bar{q}\) and show that \(\mathrm{SU}(3)\) color singlets occur in this product.