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

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

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