#include <string>
#include <iostream>
#include <regex>
using namespace std;
 
int main() {
	std::regex r(R"(^\S+|\b\w[^;]*)");
	std::string s = "<start> sunlight; small red flowers; trees;";
	for(std::sregex_iterator i = std::sregex_iterator(s.begin(), s.end(), r);
                             i != std::sregex_iterator();
                             ++i)
    {
        std::smatch m = *i;
        std::cout << m.str() <<  '\n';
    }
	return 0;
}
 

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