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

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

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