{HEAD ~ The lithographic apparatus} may be of {TAIL ~ a type} having two or more substrate tables  
{ HEAD ~ The lithographic apparatus } may be of { TAIL ~ a type } having two or more substrate tables
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH