Input (grade 10): Bukit Timah, which literally means "tin hill" in Malay, was already identified on the 1828 map by Frankin and Jackson as Bukit Timah.
Output (grade 7): Bukit Timah, which means "tin-bearing hill" in Malay, was on the 1828 map by Frankin and Philip Jackson as Bukit Timah.