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

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

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