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

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

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