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

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

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