\times e ^ { - { i } [ \tilde { \bf r } ^ { \prime \prime } \times \tilde { \bf r } + \tilde { \bf r } ^ { \prime \prime \prime } \times \tilde { \bf r } ^ { \prime \prime \prime \prime } ] } f ( \tilde { \bf r } ^ { \prime \prime \prime } ) g ( \tilde { \bf r } ^ { \prime \prime \prime \prime } ) h ( \tilde { \bf r } ^ { \prime \prime } ) .\seal\killer-whale\ostritch