source: [lemma=□] □ □
destination: [lemma=because] □ □
spec: The use of a skin area free of lesions and away from veins is recommended . However , because key Senate leaders , Senate Finance Committee Chair Charles Grassley ( R-Iowa ) and ranking member Max Baucus ( D-Mont . WWW servers maintain accurate logs of page accesses and times , which would allow a precise picture of users ' paths through a hypertext to be built up .