If 2 is denoted by '[', 4 is denoted by '=' , 9 is denoted by '-' and 0 is denoted by '+', what is '=[-+'?

Statements:

All blacks are white.

Only a few whites are red.

No red is yellow.

Conclusions:

Statements:

Only a few Bottle is Cap.

No Cap is Surface.

No Surface is Structure.

Conclusion:

Statement:       

Only a few Boat are Noise.     

Only a few Noise are Bose.     

Conclusion:    

Statements:All circles are rectangles.

No rectangle is a square.

Conclusions:I. No square is a rectangle.

Statements:

All hole are whole.

Each whole is lot.

Some hole are combo.

No whole is pack.

Conclusions:

Statements: Some reds are blues.

All blues are greens.

Some greens are not yellows.

Conclusions: I. Some yellows are reds.

Statements:No strategy is a motivation.

All motivations are training.

Conclusions:I. Some strategies are trainings.

Statement:

Mostly Maruti is Audi.

A few Audi is BMW.

All BMW are roofs.

No Toyota is Honda.

Statements:

Some year are day.

Each year is month.

Only day are week.

Conclusions:

I. Some month are week.

II. Some month are year.

III. No year is week

Statement : No fruit is a vegetable.

Some vegetable are petals.

All petals are trees.

Some trees are leaves.