id	keyword
aijssr-520	covid-19
aijssr-520	philippines
aijssr-520	coronavirus
aijssr-520	march
aijssr-520	learning
aijssr-520	research
aijssr-520	disease
aijssr-520	china
aijssr-520	cases
aijssr-520	government
aijssr-520	schools
aijssr-520	country
aijssr-520	health
aijssr-520	study
aijssr-520	process
aijssr-520	education
aijssr-520	manila