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

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

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