Table 3.

Illustration of material in Experiment 2

Gram	Structure
Gram	Parenth	That economist, the one who was at the conference Paul attends every year in Rome, made fun of the banker.
Ungram	Parenth	*That economist, the one who was at the conference Paul attend every year in Rome, made fun of the banker.
Gram	Restr	That economist who was at the conference Paul attends every year in Rome made fun of the banker.
Ungram	Restr	*That economist who was at the conference Paul attend every year in Rome made fun of the banker.