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

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

*GRAMMAR*
dax -> GREEN 
 zup -> YELLOW 
 tufa -> RED 
 fep -> PINK 
 u1 wif u2 -> [u2] [u1] 
 x1 blicket -> [x1] [x1] 
 x1 lug x2 -> [x1] [x1] [x2] [x2] 
 u1 x1 -> [u1] [x1] 
 