Unfortunately, there were some subtle differences between the interpreter and the compiler, which meant that large programs that ran correctly in the interpreter might fail after compilation, or not compile at all because of differences in the memory management routines.

This has been proposed by some to be the key to why animals like the Giant Tortoise can live over 150 years.

How will you comprehend what the night star is ?

And have you understood what the nightly arriver is ?

And what shall teach thee what is the night star ?

And what shall make thee know that which the night comer is ?

And what will make you to know what At Tariq ( night comer ) is ?

But what will let you know what at Tariq is ?

what do you know what the night visitor is ?

Ah , what will tell thee what the Morning Star is !

( and what will show you what is the nightly visitor ?

What could let you know what the nightly comer is !

And what can make you know what is the night comer ?

Do you know what al tariq is ?

And what will make you know what the comer by night is ?

and what could make you know what it is that comes in the night ?

And what will explain to thee what the Night Visitant is ?

All such issues detected by these tools would rarely be picked up by a compiler or interpreter, thus they are not syntax checkers, but more semantic checkers.

Rather, the interpreter must find concrete evidence of the parties' intentions in this regard in the material sources referred to in articles 31 and 32 VCLT, namely in the terms themselves the context the object and purpose of the treaty and, where necessary, the travaux.