*SUPPORT*
IN: wif fep blicket dax wif OUT: YELLOW GREEN YELLOW
IN: tufa zup blicket OUT: GREEN BLUE
IN: wif zup tufa dax wif dax tufa OUT: BLUE YELLOW BLUE YELLOW
IN: blicket OUT: GREEN
IN: tufa blicket OUT: BLUE GREEN
IN: blicket zup tufa OUT: BLUE GREEN
IN: blicket fep tufa zup tufa dax blicket OUT: GREEN BLUE BLUE GREEN
IN: wif wif lug blicket zup lug OUT: YELLOW YELLOW RED RED GREEN
IN: blicket zup wif dax lug OUT: RED YELLOW GREEN
IN: tufa fep lug zup blicket OUT: GREEN RED BLUE
IN: tufa lug wif fep blicket zup wif OUT: BLUE RED YELLOW GREEN YELLOW
IN: tufa zup tufa OUT: BLUE BLUE
IN: blicket blicket zup lug dax wif dax lug OUT: RED YELLOW GREEN RED GREEN
IN: wif tufa zup wif OUT: YELLOW YELLOW BLUE

*QUERY*
IN: tufa OUT: BLUE
IN: wif fep tufa zup tufa dax wif OUT: YELLOW BLUE BLUE YELLOW
IN: wif fep blicket OUT: GREEN YELLOW
IN: tufa fep lug zup lug OUT: RED RED BLUE
IN: blicket fep wif zup wif dax tufa OUT: BLUE YELLOW YELLOW GREEN
IN: blicket zup lug OUT: RED GREEN
IN: tufa lug dax blicket OUT: GREEN BLUE RED
IN: blicket zup wif OUT: YELLOW GREEN
IN: wif OUT: YELLOW
IN: lug OUT: RED

*GRAMMAR*
lug -> RED 
 tufa -> BLUE 
 wif -> YELLOW 
 blicket -> GREEN 
 u1 fep x1 -> [x1] [u1] 
 u1 zup u2 -> [u2] [u1] 
 x1 dax u1 -> [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 