Consider the nuclear reaction:
\[
{}^{2}_{1}H + {}^{2}_{1}H \rightarrow {}^{4}_{2}He
\]
Binding energy per nucleon of \( {}^{2}_{1}H \) and \( {}^{4}_{2}He \) are \(1.1\,\text{MeV}\) and \(7\,\text{MeV}\) respectively. Find the energy released in the nuclear reaction.