smell-n; 5 Senses

Sense Number 1: the scent or odor of something

Commentary: SMELL[+quality][+property][+odor]

Examples:
We awoke to the smell of hot coffee and frying bacon.
He liked the lingering smell of her hair on his pillow.
These dogs are trained to identify different chemical smells.

Mappings:
PropBank: smell.01
WordNet 3.0 Sense Numbers: 1, 2

Sense Number 2: a bad or unpleasant odor

Commentary: SMELL[+quality][+property][+odor][+bad]
NOTE: a narrow, pejorative usage of Sense 1

Examples:
Twenty seven cats lived in the apartment, so you can imagine the smell.
They left the hotel after one night because of the smells.

Mappings:
PropBank: NM
WordNet 0.0 Sense Numbers: 1b

Sense Number 3: general atmosphere of a situation

Commentary: SMELL[+quality][+atmosphere][+of_situation]

Examples:
The whole business proposition has a funny smell about it.
The act has the smell of treason.
Mary's life has the smell of excitement.

Mappings:
PropBank: NM
WordNet 3.0 Sense Numbers: 3

Sense Number 4: the sense faculty of odor detection

Commentary: SMELL[+quality][+faculty][+sense][+scent_detection]

Examples:
Dogs have a far better sense of smell than humans do.
The sharks find the bloody chum by smell.
The spray confuses the insects' smell sensors.

Mappings:
PropBank: NM
WordNet 3.0 Sense Numbers: 4

Sense Number 5: the act of perceiving a scent

Commentary: SMELL[+event][+perceptual][+detection][+of_scent]

Examples:
Mary bent over the rose bush to have a smell.
The head chef took a smell of the sauce and corrected the seasoning.

Mappings:
PropBank: NM
WordNet 3.0 Sense Numbers: 5