Q: Sentence (1) Air pollution.
Sentence (2) A smell of chemicals in the air.. Word: air.
==--==
A: the same meaning

Q: Sentence (1) Extract information from the telegram.
Sentence (2) Extract a bad tooth.. Word: extract.
==--==
A: the same meaning

Q: Sentence (1) You really have to empathize.
Sentence (2) You really have to empathize with their doing it.. Word: empathize.
==--==
A:
the same meaning