Alright, I know everyone is having a laugh at your expense, so here's the polite version. When we're dealing with strains, we have a thing called phenotypes. Just like with people, when a couple have kids, those kids come out with variations - different combinations of the parents' DNA, the expression of recessive genes (twins appear every other generation, or a child may have a different hair color than the parents but the same as a great grandparent) and then there's some random mutation thrown in for good measure (that's how evolution works). But the kids don't come out identical to each other or identical to the parent.
Even in the case of some feminized seeds where a plant pollinates itself and is the only parent, there's still going to be some differences between the parent plant and every seed it produced. The only way to insure that your plants have the same DNA is by cloning. When we pheno hunt, we're growing out a bunch of seeds from the same strain and then picking our favorites to breed or clone - selective breeding helps make certain traits more dominant, but not necessarily guaranteed.
When people say GG#4 it's because the original GG was an accidental crossbreed, multiple plants were grown from it, and plant #4 was selected as the best one. But still the only way to get actual GG#4 was to get a clone of it. Plenty of people still get GG seeds and they're probably descended from GG#4 but they're not the ACTUAL GG#4. They're it's children. And actually, a lot of generations of selective breeding are necessary to stabilize a strain to help make the dominant traits more dominant and the recessive traits more recessive - until then one generation to the next could vary wildly. And GG being an accidental cross from ... was it 2017? It's still a fairly young strain that may not be fully stabilized yet. Especially since it went to market as clones rather than seeds so they didn't take time to breed it out.
Add to that, there are hundreds of different strains people have bred and named by now... and all of this adds up to no real way of telling exactly what strain a plant is just by looking at it. The only sure way to know what you have is to have a verifiable lineage from trustworthy breeders. And even then, there are a lot of people out there growing whatever they like and calling it whatever they want, even if the name is already taken. I know of at least three or four variations of Pineapple Express that come from different cross-breed combinations.
The position you're in, you can either take the word of the person who gave you the seeds and accept that sometimes the next generation doesn't look exactly like the previous one. Or you can name it yourself and impress your friends with this rare new strain. Looking at the size and shape of the leaves and the overall height and bushiness of the plant should give you some idea of how much it leans toward indica or sativa, and then you can use your own personal experiences once it's finished to identify its flavor, scent, and effects.
On an aside, going hermie is a genetic trait that can be encouraged through breeding - growing seeds from a hermie plant increases the likelyhood that its descendants will also go hermie. So be on the lookout.