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

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

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