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

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

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