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

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

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