Initial data commit

Task/Conditional-structures/Inform-7/conditional-structures-1.inf

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+[short form]
+if N is 1, say "one.";
+otherwise say "not one.";
+
+[block form]
+if N is 1:
+	say "one.";
+otherwise if N is 2:
+	say "two.";
+otherwise:
+	say "not one or two.";
+
+[short and long forms can be negated with "unless"]
+unless N is 1, say "not one."

Task/Conditional-structures/Inform-7/conditional-structures-2.inf

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+if N is:
+	-- 1: say "one.";
+	-- 2: say "two.";
+	-- otherwise: say "not one or two.";

Task/Conditional-structures/Inform-7/conditional-structures-3.inf

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+say "[if N is 1]one[otherwise if N is 2]two[otherwise]three[end if].";
+say "[unless N is odd]even.[end if]";

Task/Conditional-structures/Inform-7/conditional-structures-4.inf

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+[a different color every time]
+say "[one of]red[or]blue[or]green[at random].";
+
+["one" the first time it's printed, "two" the second time, then "three or more" subsequently]
+say "[one of]one[or]two[or]three or more[stopping]";
+
+[only appears once]
+say "[first time]Hello world![only]";

Task/Conditional-structures/Inform-7/conditional-structures-5.inf

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+Number Factory is a room.
+
+Number handling is a number based rulebook with default success.
+
+Number handling for 1: say "one."
+Number handling for 2: say "two."
+Number handling for an even number (called N): say "[N in words] (which is even)."
+Last number handling rule: say "other."
+
+When play begins:
+	follow the number handling rules for 2;
+	follow the number handling rules for 4;
+	follow the number handling rules for 5.