*SUPPORT*
IN: zup dax zup OUT: YELLOW YELLOW
IN: wif dax zup blicket OUT: RED YELLOW RED YELLOW
IN: wif tufa zup blicket blicket OUT: RED YELLOW RED YELLOW RED YELLOW RED YELLOW
IN: wif tufa zup OUT: RED YELLOW
IN: lug dax lug blicket OUT: PURPLE PURPLE PURPLE PURPLE
IN: lug tufa zup blicket OUT: PURPLE YELLOW PURPLE YELLOW
IN: kiki tufa wif OUT: GREEN RED
IN: kiki tufa kiki OUT: GREEN GREEN
IN: kiki tufa zup OUT: GREEN YELLOW
IN: wif zup OUT: RED YELLOW
IN: lug wif tufa lug blicket OUT: PURPLE RED PURPLE PURPLE RED PURPLE
IN: kiki blicket OUT: GREEN GREEN
IN: kiki OUT: GREEN
IN: zup tufa zup OUT: YELLOW YELLOW

*QUERY*
IN: wif dax kiki OUT: RED GREEN
IN: zup tufa kiki OUT: YELLOW GREEN
IN: lug wif OUT: PURPLE RED
IN: wif tufa lug OUT: RED PURPLE
IN: zup dax wif blicket OUT: YELLOW RED YELLOW RED
IN: kiki dax zup OUT: GREEN YELLOW
IN: wif lug lug OUT: RED PURPLE PURPLE
IN: lug dax zup OUT: PURPLE YELLOW
IN: lug OUT: PURPLE
IN: wif OUT: RED

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