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

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

*GRAMMAR*
fep -> RED 
 wif -> GREEN 
 tufa -> PURPLE 
 lug -> BLUE 
 u1 dax u2 -> [u1] [u2] [u1] 
 u1 zup u2 -> [u2] [u1] 
 x1 blicket x2 -> [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 