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

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

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