id	domain	url
stem-8027	www.eduref.org	https://www.eduref.org/virtual/lessons/foreign_language/linguistics/lin0200.pdf
stem-8027	www.flowspeak.io	https://www.flowspeak.io
stem-8027	www.frontiersin.org	https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2021.739842/full#ref23
stem-8027	www.frontiersin.org	https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2021.739842/full#ref44