Fix reranking parmeter

See merge request !24

Tira

See merge request !23

Modify arg rank

See merge request !22

# Conflicts:
#   python/src/app.py

Fix ranking score

See merge request !21

Add reranking based on word mover distance

See merge request !19

Word mover distance

See merge request !18

Refactor structural distance

See merge request !17

Token length factor

See merge request !16

Implement stance restriction on premise retrieval

See merge request !15

Check for same stance stance

See merge request !13

Graph reranking

See merge request !14