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

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

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