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

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

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