Output actual relations

[aoldoni]

E.g.: simply highlight in the sentences:

• verb being searched in black.
• nsubj in green.
• dobj in blue.
• different colors per optional parameter.
• rest of the sentence in gray.

Other notes:

• attempt to put arrows using CSS.
• or simply print the sentence and an image and make the relation part of the image. Boxes of the graph in the image to be presented in ordered manner so reads like the sentence.

This entails dealing with, and modifying, a tree structure that deeper than 1 single level, as current codebase expects.

[aoldoni]

• Subject: Mandatory
• Object: Optional
• Preserve some essential other dependencies as it is.

[aoldoni]

Fixed in https://github.com/aoldoni/comp9596/commit/4ab2c2b8387f142901c410f1ec2a865ecc339817