id	keyword
gi-4514	oil
gi-4514	land
gi-4514	spill
gi-4514	cause
gi-4514	respondents
gi-4514	effect
gi-4514	analysis
gi-4514	variation
gi-4514	community
gi-4514	solution
gi-4514	nigeria
gi-4514	oil spill
gi-4514	cover
gi-4514	pipeline