Definition: The function (QUANT z e)=m generates a quantity m from a number z and a measurement unit e.

Measurement units can also be modified by concepts denoting containers (e.g. box, bag, mug, cup, etc.). So, three bags of tea, a cup of coffee, etc, can be represented with QUANT and QMOD.

Also, indefinite numbers like several, many, a few, etc. are used to describe fuzzy measurements, such as several kilometers and many tons.