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

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

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