Sika is designed to be extremely simple, often at the expense of similarity with existing languages (though this time is actually pretty similar to Japanese). You can probably find some interesting ideas here.

If the grammar's confusing, you can check the last post, but the summary is that every syntactic construction is head-final.

c /ɕ~ʃ/

We can modify a concept to get its presence with ci, for instance pin becomes pinci, a thing having a pin. Suppose we want to say that every pen has a pin (where "pin" is suitably interpreted to mean "a pointy thing"). The "full" way to say this is

pen pinci hasu. - All pens have pins.

The ha combines the pen and pinci to form a statement like "any A is a B", and su serves to complete an assertion (so the noun given doesn't keep floating around). However, we can leave that last part off for the end of a statement:

pen pinci ha.

Leaving two unresolved nouns at the end of a statement implies ha, so we can shorten this further to

pen, pinci.

We could also say this by marking pen as the topic with so:

penso pinci. - As for a pen, it has a pin.

But if we're already talking about pens, then we don't need to set the topic this way, and could just say

pinci. - It has a pin.

But what if the matter is the relationship between pens and pins, like if someone asked

penso, pin…? - As for a pen, what's a pin?

This kind of question is an invitation for the listener to complete the statement, which they can:

…ci. - It (in this case the topic) has it (in this case the subject of the question, a pin).

In a similar vein, here's "yes" and "no":

su. - That's it. = That's correct.

hi. - That's not it. = That's incorrect. [This is just a modifier meaning "not".]

There are some cases where we're already in the middle of a phrase but want to refer to a recently mentioned concept like this; in that case, we use tu, which is basically a placeholder noun that we can use rather than including a more detailed noun phrase:

pen, tu. - A pen is it. (That is, a pen is an example.)

Similarly, we have cu, a placeholder modifier, which again can let us drop out sequences of words if they are irrelevant or long, provided the net effect is to modify the given word:

pencu. - It's a thing corresponding in some way to a pen.

It can serve as a genitive construction:

pencu pin he. - It's the pen's and (he) a pin. = It's the pen's pin.

Finally, some other useful answers:

tu. - It's correct. = Yes. [for when you don't necessarily want to agree with the sentiment expressed directly]

tuhi. - No.

cu. - It's related to that.

Next time I'll probably do something more semantically involved (like time, once the words are more finalized) and introduce the fu inversion prefix.

If this was confusing or you see a problem (or if you liked it), please leave your feedback!