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

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

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