answer
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business
call
clarity
clerk
commentary
consultation
contact
contract
counter
customer service
desktop computer
doubt
elderly
explanation
face
facial expression
failure
female
grandfather
headset
illustration
impatient
inquiry
internet
japanese
laptop
male
middleaged
mobile phone
old man
operator
person
personal computer
question
receptionist
report
response
senior
set
smartphone
smile
telephone
troubled face
understanding
upper body
white background
work