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

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

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