ner_tags: O O O O O O O O O O B-Person O O O O O B-Organization I-Organization I-Organization I-Organization I-Organization O O B-Location B-Organization O O B-Fellowship I-Fellowship I-Fellowship O O O O O O O O B-Survey I-Survey I-Survey O O O O B-URL O O O O O O B-Organization O O O O O O O B-Database O O O O B-Organization B-Location I-Location
tokens: The authors thank the anonymous referee for his/her useful comments. JLW acknowledges financial support from the Science and Technology Facilities Council of the UK (STFC) via the PhD studentship programme. This paper made use of information from the Red MSX Source survey data base at http://rms.leeds.ac.uk/cgi-bin/public/RMS_DATABASE.cgi which was constructed with support from STFC. This research has made use of the SIMBAD data base, operated at CDS, Strasbourg, France.