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

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

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