*SUPPORT*
IN: gazzer zup wif OUT: RED BLUE
IN: fep wif OUT: GREEN RED
IN: wif blicket OUT: RED RED
IN: wif zup lug OUT: PURPLE RED
IN: lug tufa wif fep blicket OUT: PURPLE RED GREEN GREEN
IN: gazzer wif zup fep OUT: BLUE GREEN RED
IN: gazzer tufa wif tufa lug OUT: BLUE RED PURPLE
IN: gazzer OUT: BLUE
IN: fep blicket OUT: GREEN GREEN
IN: fep zup lug tufa wif gazzer blicket OUT: PURPLE GREEN RED BLUE BLUE
IN: fep tufa lug OUT: GREEN PURPLE
IN: gazzer zup gazzer OUT: BLUE BLUE
IN: lug OUT: PURPLE
IN: wif lug zup gazzer tufa lug blicket OUT: RED BLUE PURPLE PURPLE PURPLE

*QUERY*
IN: wif zup wif OUT: RED RED
IN: gazzer zup fep OUT: GREEN BLUE
IN: fep OUT: GREEN
IN: lug lug zup fep OUT: PURPLE GREEN PURPLE
IN: lug zup gazzer tufa wif zup gazzer OUT: BLUE PURPLE BLUE RED
IN: gazzer zup gazzer tufa wif zup lug OUT: BLUE BLUE PURPLE RED
IN: fep zup lug OUT: PURPLE GREEN
IN: wif OUT: RED
IN: lug zup lug OUT: PURPLE PURPLE
IN: fep zup fep OUT: GREEN GREEN

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