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

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

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