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

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

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