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

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

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