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

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

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