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

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

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