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

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

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