Name a city located next to the Rhine river that contains the word " mannheim" in its name
SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q1187811 . ?sbj wdt:P206 wd:Q584 . ?sbj rdfs:label ?sbj_label . FILTER(CONTAINS(lcase(?sbj_label), 'mannheim')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
college town: Q1187811 rhine: Q584