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

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

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