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

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

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