a projector screen
a laptop computer
a man in a black shirt
a black bag
a mobile phone
a man giving a lecture
a speaker podium
a man using a phone
a man with red hair
a macintosh laptop on a podium
Man making a presnentation
Cellphone being held by man
Laptop being used to make presentation
Black leather bag
A presentation of a computer screen
Podium presentation is being made on.
Black shirt man is wearing
Wires coming out of laptop
blackboard behind presenter
Screen showing presentation
a man wearing black polo shirt
a blackboard in the wall
a smartphone on man's hand
a large computer display
wood paneling on lower wall
light brown hair on man's head
an apple laptop computer
apple logo sign on computer case
a grey presentation pedestal
a leather carrying case
Man standing at podium.
Screen behind the man.
A gray podium.
Computer on top of podium.
A black computer bag.
Icons on bottom of computer screen.
Window in the building.
Man wearing a black shirt.
Man holding an i phone.
Wall beneath the screen.
A gray laptop computer
A professor teaching a lesson
A black carry bag
A large projection screen
Mac computer navigation icons
A man doing a demonstration
A black lesson board
Students shown on screen
Podium holding a laptop
A man holding a cell phone

Objects:
screen
laptop
picture
shirt
man
bag
phone
podium
hair
presentation
wires
blackboard
wall
panel
apple logo
icons

Attributes:
name: screen
attrs: projected
large
name: laptop
attrs: macintosh
grey
apple
name: picture
name: shirt
attrs: black
name: man
attrs: presenting
teaching
lecturing
name: bag
attrs: leather
black
name: phone
name: podium
attrs: grey
gray
name: hair
attrs: red
name: presentation
name: wires
name: blackboard
attrs: black
name: wall
name: panel
attrs: wooden
name: apple logo
name: icons

Contrastive attributes: