I definitely think it depends on the state of your tomato. A store bought tomato has a more sour, acidic taste due to how they're harvested and ripen off the vine. If you get them more locally sourced, and they ripen on the vine longer, they definitely develope the flavors you've mentioned.
Bovril, often consumed in liquid form at football matches, because this country's food food culture has come a long way, but still needs to remember it's roots
Was aber wohl unwahr ist, sind die Geschmackszonen auf der Zunge. Ich kann mich auch noch erinnern, wie die Klasse in der Schule etwas ungläubig war, die Lehrerin das aber als Fakt durchgesetzt hat.
Spicy can be several things. I associate it mostly with chili heat (capsaicin fucking with your vanillin receptors for heat and pain) but people also call black pepper, onion and garlic spicy. They all have different "mechanisms of action". I have no idea why e.g. chili heat isn't considered a "taste", but apparently it's not.