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

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

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