def build_atom_aliases(body_atoms):
    """ Name each atom in the body with "aliases" and return the alias list

        Args:
            body_atoms:
                the list of atoms of the rule body
        Return:
            body_atom_alias_list:
                the list of aliases of the body atoms
    """
    body_atom_alias_list = []
    body_atom_naming_index = 0
    for atom in body_atoms:
        alias = atom['name'][0].lower() + str(body_atom_naming_index)
        body_atom_alias_list.append(alias)
        body_atom_naming_index += 1

    return body_atom_alias_list