Question: What is the sRGB color hex triplet of Northern line ?
Choices: E81B23
000000
C41E3A
081E3F
FFD100
87CEFA
DC241F
E30040
00AEF3
858585
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:name> "Northern line" . ?e <sRGB_color_hex_triplet> ?pv .  }
Program:
function: Find
inputs: Northern line
function: QueryAttr
dependencies: 0
inputs: sRGB color hex triplet
Answer: 000000