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

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

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