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

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

*GRAMMAR*
wif -> BLUE 
 kiki -> RED 
 dax -> PINK 
 lug -> PURPLE 
 u1 gazzer u2 -> [u2] [u1] 
 u1 tufa -> [u1] [u1] [u1] [u1] 
 x1 fep u1 -> [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 