{\cal L}=\frac{1}{2}(\partial _{\mu }\chi _{\nu \rho })^{2}-\frac{1}{2}%\partial _{\mu }\chi _{\nu \rho }\partial _{\nu }\chi _{\mu \rho }-\frac{1}{6%}(\partial _{\mu }\chi _{\mu \nu })^{2}.  \label{action2}  \alligator \bat \queen-bee \stingray \squid \toucan \snake-2