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

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

*GRAMMAR*
zup -> YELLOW 
 fep -> RED 
 wif -> PURPLE 
 tufa -> GREEN 
 u1 dax x1 -> [x1] [u1] 
 x1 lug x2 -> [x2] [x1] 
 u1 gazzer x1 -> [x1] [u1] 
 u1 x1 -> [u1] [x1] 
 