this is a podium
this is a laptop
this is a spotlight
this is a silver laptop
this is a stage
this is a screen
this is a hoodie
this is a man's head
this is the color black
this is the color gray
these are laptops
the laptop is open
this is the hair
the hair is black in color
this is the podium
this is the wall
the wall is black in color
this is a camera
the light is bright
these are several buttons
Two guys with laptops
Blue and white on laptop screen
Man standing at podium
large white screen behind man
Large video camera
Man is wearing headphones
Man is wearing a suit
The stage is black
Man has dark brown hair
White screen on laptop
man lecturing in front of students
man standing at blue and white podium
speaker covered in white light in dark auditiorium
blank rectangular white screen
equipment and wires on dark stagre
back of heads seated at different levels
lights glowing from open laptops
blank screen with dark stripe on side
images and icons against blue and white backgrounds
surfaces with wires and personal belongings
a computer to left
computer to right
person to left right ear
person to the left left ear
two computers on
back of persons head on right
a lit up statue
some type of machine
a white screen
the end of a hair line

Objects:
person
screen
laptop
laptop
boy
head
light
guys
laptops
screen
man
podium
man
camera
man
headphones
man
suit
stage
hair
screen
man
students
man
podium
auditorium
stage
heads
lights
screen

Attributes:
name: person
attrs: white
standing
tall
speaker
teaching
name: screen
attrs: big
white
massive
huge
blue
rectangular
blank
large
wide
name: laptop
attrs: working
white
grey
silver
brown
on
name: boy
attrs: white
sitting
name: head
attrs: man's
name: light
attrs: bright
name: guys
name: laptops
name: man
attrs: standing
lecturing
name: podium
attrs: blue
name: camera
attrs: large
video camera
name: headphones
name: suit
name: stage
attrs: dark
black
name: hair
attrs: dark
name: students
name: auditorium
attrs: dark
name: heads
attrs: seated
name: lights
attrs: glowing

Contrastive attributes: