Table:
Cellulose ethers
Reagent
Example
Reagent
Group R = H or
Water solubility
Application
E number

Alkyl
Halogenoalkanes
Methylcellulose
Chloromethane
-CH3
Cold water soluble

E461

Ethylcellulose
Chloroethane
-CH2CH3
Water insoluble
A commercial thermoplastic used in coatings, inks, binders, and controlled-release drug tablets
E462

Ethyl methyl cellulose
Chloromethane and chloroethane
-CH3 or -CH2CH3

E465

Hydroxyalkyl
Epoxides
Hydroxyethyl cellulose
Ethylene oxide
-CH2CH2OH
Cold/hot water soluble
Gelling and thickening agent

Hydroxypropyl cellulose (HPC)
Propylene oxide
-CH2CH(OH)CH3
Cold water soluble

E463

Hydroxyethyl methyl cellulose
Chloromethane and ethylene oxide
-CH3 or -CH2CH2OH
Cold water soluble
Production of cellulose films

Hydroxypropyl methyl cellulose (HPMC)
Chloromethane and propylene oxide
-CH3 or -CH2CH(OH)CH3
Cold water soluble
Viscosity modifier, gelling, foaming and binding agent
E464

Ethyl hydroxyethyl cellulose
Chloroethane and ethylene oxide
-CH2CH3 or—CH2CH2OH

E467

Carboxyalkyl
Halogenated carboxylic acids
Carboxymethyl cellulose (CMC)
Chloroacetic acid
-CH2COOH
Cold/Hot water soluble
Often used as its sodium salt, sodium carboxymethyl cellulose (NaCMC)
E466

Based on the given table, what are the locations of the following cells?
CELL VALUE 1: '-CH2CH(OH)CH3',
CELL VALUE 2: 'Hydroxyalkyl',
CELL VALUE 3: 'E467',
CELL VALUE 4: 'Chloroethane and ethylene oxide',
CELL VALUE 5: 'Alkyl',
CELL VALUE 6: 'Cold/Hot water soluble',
CELL VALUE 7: 'Chloromethane and chloroethane',
Return the cell location in the JSON format {'value': '<cell value>', 'location': (row index, column index)} where row indices and column indices all start from 1. If a cell does not exist in the table, denote its location as 'DOES NOT EXIST'.

The coordinates of target cells are listed below.
CELL LOCATION 1: {'value': '-CH2CH(OH)CH3', 'location': (6, 5)}
CELL LOCATION 2: {'value': 'Hydroxyalkyl', 'location': (5, 1)}
CELL LOCATION 3: {'value': 'E467', 'location': (9, 8)}
CELL LOCATION 4: {'value': 'Chloroethane and ethylene oxide', 'location': (9, 4)}
CELL LOCATION 5: {'value': 'Alkyl', 'location': (2, 1)}
CELL LOCATION 6: {'value': 'Cold/Hot water soluble', 'location': (10, 6)}
CELL LOCATION 7: {'value': 'Chloromethane and chloroethane', 'location': (4, 4)}